All ZTools

ZTools is a collection of 575 developer & creator tools across 20 categories, each documented with use cases, examples, and FAQs. The vast majority run entirely in your browser — no signup, no upload, no data leaves your device. A small Growth Suite adds AI-assisted SEO/AEO tools that require a sign-in and your own provider API key (BYOK, with optional paid tiers); those pages are clearly marked.

Conversion

• Convert ASCII Art to Image — Render ASCII art as downloadable image
• Convert ASCII to Decimal — Convert ASCII characters to decimal codes
• Base64 Encoder/Decoder — Encode or decode data in Base64 format instantly.
• Binary to Negabinary — Convert binary to base -2 (negabinary)
• Convert Bytes to ASCII — Convert byte arrays to ASCII text
• Advanced Color Converter — Convert colors between HEX, RGB, HSL, HSV, and CMYK.
• CSV to JSON Converter — Convert CSV data to JSON format.
• CSV to XLSX — Convert CSV files to Excel format
• Currency Converter — Convert between world currencies with live rates.
• Data Storage Converter — Convert between data storage units (bytes, KB, MB, GB, TB).
• Convert Decimal to ASCII — Convert decimal codes to ASCII characters
• DOCX to PDF — Convert Microsoft Word documents to PDF format
• Convert Dog Age — Convert dog years to human years
• HEIC to JPG — Convert HEIC iPhone images to standard JPG format
• Convert Hex to Text — Convert hexadecimal strings to UTF-8 text
• HTML Entities Encoder — Convert special characters to HTML entities.
• IP Address Converter — Convert IP addresses between formats (IPv4, decimal, hex).
• Convert IP to Hex — Convert IP addresses to hexadecimal format
• JavaScript to JSON Converter — Convert JavaScript objects and arrays to valid JSON format.
• JavaScript to TypeScript Converter — Convert JavaScript code to TypeScript with automatic type inference.
• JSON to CSV — Convert JSON arrays to CSV format for spreadsheets
• JSON to JavaScript Converter — Convert JSON to JavaScript object/array literal with export options.
• JSON to YAML Converter — Convert between JSON and YAML formats.
• Length Converter — Convert between meters, feet, inches, and more.
• Length Converter — Convert between length and distance units.
• Markdown to HTML — Convert Markdown to HTML and vice versa.
• Markdown to PDF — Convert Markdown documents to PDF files
• Number Base Converter — Convert between binary, decimal, hex, and octal.
• Octal Converter — Convert between decimal, octal, and other number bases.
• Percentage Calculator — Calculate percentages, increase, decrease, and more with ease.
• RGB/Hex Converter — Convert colors between RGB, Hex, and HSL formats.
• Roman Numerals Converter — Convert between Roman numerals and decimal numbers.
• Speed Converter — Convert between speed units (mph, km/h, m/s, knots).
• Temperature Converter — Convert between Celsius, Fahrenheit, and Kelvin.
• Temperature Converter — Convert between Celsius, Fahrenheit, and Kelvin.
• Time Unit Converter — Convert between seconds, minutes, hours, days.
• TypeScript to JavaScript Converter — Remove type annotations and convert TypeScript to plain JavaScript.
• Unit Converter — Convert between different units of measurement.
• Unix Timestamp Converter — Convert Unix timestamps to dates and vice versa.
• URL Encoder/Decoder — Encode and decode URLs and query parameters.
• Weight Converter — Convert between kg, pounds, ounces, and more.
• Weight Converter — Convert between weight and mass units.
• XLSX to CSV — Convert Excel spreadsheets to CSV format

Data

• Analyze JSON — Analyze JSON structure and statistics
• Array Operations — Perform operations on arrays: union, intersection, difference.
• Change CSV Delimiter — Convert comma to tab or custom delimiter
• Column Extractor — Extract specific columns from CSV/table data.
• Count Binary Ones — Count number of 1s in binary string
• Count Binary Zeros — Count number of 0s in binary string
• CSS Specificity Calculator — Calculate CSS selector specificity and understand rule precedence.
• CSV Column Mapper — Remap and rearrange CSV columns
• CSV Parser — Parse and analyze CSV data.
• Convert CSV to Text Columns — Convert CSV to fixed-width text columns
• CSV Viewer — View CSV data in table format.
• Data Cleaner — Clean and normalize data with multiple options
• Diff Merger — Merge text differences and resolve conflicts.
• Find Duplicate List Items — Identify duplicate entries in list
• Find List Length — Count total items in a list
• Find Unique List Items — Extract unique values from list
• Grep Tool — Search text using regular expressions.
• Convert Hex to Image — Visualize hex data as image using canvas
• HTML Entity Counter — Count and analyze HTML entities in your code.
• Invert Binary Bits — Flip all bits in binary string (0↔1)
• JS Object to JSON — Convert JavaScript objects to valid JSON.
• JSON Formatter — Format and beautify JSON data.
• JSON Minifier — Minify JSON by removing whitespace.
• JSON Path Finder — Find and extract data using JSONPath queries.
• JSON Schema Generator — Generate JSON Schema from sample JSON data
• JSON to Single Line String — Convert valid JSON into an escaped one-line string literal.
• JSON Tree Viewer — View JSON data in interactive tree structure.
• JSON Validator — Validate JSON syntax and structure.
• JSON Viewer — View and explore JSON data structure.
• List Deduplicator — Remove duplicate items from lists.
• List Randomizer — Randomly shuffle and reorder list items.
• List Shuffler — Randomly shuffle list items.
• List Sorter — Sort lists alphabetically or numerically.
• Obfuscate JSON — Minify and compress JSON data
• Reverse Hex Digits — Reverse hexadecimal string characters
• Shuffle Binary Bits — Randomly shuffle bits in binary string
• Sort CSV Data — Sort CSV by column ascending or descending
• SQL Formatter — Format and beautify SQL queries.
• SQL to JSON — Convert SQL query results to JSON format.
• XML Formatter — Format and beautify XML data.
• XML Minifier — Minify XML by removing whitespace and comments.
• XML Validator — Validate XML syntax and structure.
• YAML to JSON — Convert YAML configuration files to JSON format
• YAML Validator — Validate YAML syntax and structure.

Design

• App Icon Generator — Generate app icons in all required sizes for iOS, Android, and web applications.
• Business Card Designer — Design professional business cards with templates. Export print-ready PDF or images.
• Collage Maker — Create photo collages with multiple layout templates, custom gaps, and border options.
• Color Blindness Simulator — Simulate how images appear with different types of color blindness
• Email Signature Generator — Create professional email signatures with multiple templates, social links, and HTML export.
• Icon Generator (SVG) — Create custom SVG icons with templates and customization
• Logo Maker — Create simple logos with text, shapes, and icons. Export as PNG or SVG.
• Meme Generator — Create memes with custom text, fonts, and positioning on uploaded images or templates.
• Pattern Generator Advanced — Create seamless patterns with geometric shapes, colors, and customizable designs.
• Photo Editor — Edit photos with filters, crop, rotate, resize, and adjustments directly in your browser.
• Poster Maker — Design posters and flyers with text, images, and shapes. Multiple size templates.
• Social Media Banner Maker — Create banners for Twitter, YouTube, LinkedIn, and Facebook with preset dimensions.
• Whiteboard — Draw, sketch, and brainstorm with freehand drawing, shapes, text, and color tools.
• YouTube Thumbnail Maker — Design eye-catching YouTube thumbnails at 1280x720 with text overlays and templates.

Developer

• API Response Mocker — Generate mock API responses with realistic fake data. Support for JSON, arrays, and nested objects.
• Cron Job Generator — Build cron expressions visually with human-readable descriptions and next run times.
• CSS Flexbox Generator — Visual CSS Flexbox builder with live preview. Set direction, alignment, gap, and child properties.
• CSS Grid Generator — Visual CSS Grid layout builder with rows, columns, gaps, and area placement.
• Git Command Generator — Generate Git commands for common workflows. Interactive guide for beginners and pros.
• HTML to Markdown Converter — Convert HTML to clean Markdown with support for tables, lists, links, and code blocks.
• JSON to TypeScript — Convert JSON objects to TypeScript interfaces with nested type support and naming options.
• Markdown Editor — Write Markdown with live preview, toolbar shortcuts, and export to HTML or .md files.
• Pixel to REM Converter — Convert between PX, REM, EM, and VW units with configurable base font size and batch conversion.
• SQL Formatter Pro — Format and beautify SQL queries with syntax highlighting and multiple SQL dialects.

Education

• Bibliography Generator (APA/MLA) — Generate citations and bibliographies in multiple formats
• Citation Generator — Generate citations in APA, MLA, Chicago, Harvard, and IEEE formats for any source type.
• Essay Word Counter — Count words, characters, sentences, and paragraphs in essays. Check word limits easily.
• Flashcard Maker — Create, study, and organize flashcard decks with shuffle and spaced repetition modes.
• GPA Calculator — Calculate your semester and cumulative GPA with support for multiple grading scales.
• Grade Calculator — Calculate weighted grades, find what you need on finals, and track assignment scores.
• Math Equation Solver — Solve algebraic equations, simplify expressions, and get step-by-step solutions.
• Note-Taking App — Take rich-text notes with formatting, lists, and images. Auto-save and organize notes.
• Periodic Table Interactive — Explore the periodic table with element details, properties, and electron configurations.
• Plagiarism Detector (Academic) — Advanced plagiarism detection for academic writing
• Pomodoro Study Timer — Boost productivity with the Pomodoro Technique. 25-minute focus sessions with breaks.
• Quiz Maker — Create interactive quizzes with multiple choice, true/false, and open-ended questions.
• Research Paper Outline Generator — Generate academic paper outlines in APA, MLA, Chicago formats
• Study Planner — Organize your study schedule with a visual planner. Track subjects, goals, and progress.
• Text Similarity Checker — Compare two texts and calculate similarity percentage. Detect plagiarism and duplicates.
• Typing Speed Test — Test your typing speed and accuracy with real-time WPM tracking and detailed statistics.

Encoding

• ASCII85 Encoder/Decoder — Encode and decode ASCII85 (Base85) format
• Atbash Cipher — Encode and decode text using Atbash cipher (reverse alphabet).
• Barcode Generator — Generate various barcode formats.
• Base32 Encoder/Decoder — Encode and decode text using Base32 encoding.
• Binary to Text Converter — Convert binary to text and vice versa.
• Binary to UTF-8 Converter — Convert binary string to UTF-8 text.
• Bulk Barcode & QR Generator — Paste a list or upload a CSV to generate hundreds of barcodes or QR codes at once, then export them as a ZIP, multi-page PDF, or Excel sheet.
• Caesar Cipher — Encode and decode Caesar cipher with custom shift.
• Check Digit Calculator — Calculate or verify the check digit for EAN-13/8, UPC-A, GTIN-14/ITF-14, ISBN-10/13, Luhn, and MSI Plessey codes.
• Universal Barcode & QR Decoder — Decode any QR code or barcode from an image or URL — QR, Data Matrix, Aztec, PDF417, EAN, UPC, Code 128, and more, with full ZXing output.
• Dynamic QR Code & Scan Analytics — Create editable QR codes whose destination you can change anytime without reprinting, with privacy-friendly scan analytics by country, device, and time.
• Hash Generator — Generate MD5, SHA-1, SHA-256 hashes.
• Hex to UTF-8 Converter — Convert hexadecimal bytes to UTF-8 text.
• HTML Encoder/Decoder — Encode and decode HTML special characters.
• JWT Decoder — Decode and inspect JSON Web Tokens.
• JWT Encoder/Decoder — Encode, decode, and verify JSON Web Tokens.
• MD5 Hash Generator — Generate MD5 hash from text or files.
• Morse Code Translator — Convert text to Morse code and vice versa.
• Punycode Converter — Convert international domain names.
• QR Code Generator — Generate QR codes from text or URLs.
• Quoted-Printable Encoder — Encode and decode email quoted-printable format
• ROT13 Cipher — Encode and decode ROT13 cipher text.
• Serial Number Generator — Generate sequential or random serial numbers with custom prefix, suffix, zero-padding, start, step, and count — then export or turn them into barcodes.
• SQL Encoder/Decoder — Escape SQL queries for safe execution.
• String Encoder — Encode strings in various formats (URL, HTML, Base64).
• String Escaper — Escape and unescape strings for JSON, JavaScript, and more.
• Unicode to UTF-8 Converter — Convert Unicode codepoints to UTF-8 byte sequences.
• UTF-8 to Binary Converter — Convert UTF-8 text to binary string representation.
• UTF-8 to Hex Converter — Convert UTF-8 encoded text to hexadecimal representation.
• UTF-8 Validator — Check if text or bytes are valid UTF-8 encoding.
• Vigenère Cipher — Encode and decode text using Vigenère cipher with keyword.
• XML Encoder/Decoder — Encode and decode XML special characters.

Extractor

• Date & Time Extractor — Extract dates from text in ISO 8601, US/EU formats, Unix timestamps, and relative dates
• Domain Extractor — Extract domain names from URLs, emails, and text with TLD filtering and subdomain analysis
• Email Extractor — Extract email addresses from any text with domain filtering, disposable email detection, and role-based email exclusion
• Hashtag & Mention Extractor — Extract #hashtags and @mentions from social media posts, tweets, and any text
• IP Address Extractor — Extract IPv4 and IPv6 addresses from logs, configs, or text with public/private classification
• Keyword Extractor — Extract keywords and key phrases from articles using TF scoring with n-gram support and custom stop words
• Lead Extractor — Universal contact data extractor — extract emails, phones, URLs, domains, hashtags, and mentions all at once
• Number Extractor — Extract integers, decimals, currencies, percentages, fractions, and scientific notation from text
• Phone Number Extractor — Extract and validate international phone numbers from text with country detection and formatting
• URL Extractor — Extract URLs and links from text, HTML, markdown with protocol filtering, domain analysis, and image URL exclusion

Finance

• 1099 vs W-2 Calculator — Compare take-home pay as a 1099 contractor vs a W-2 employee, and the 1099 rate needed to match.
• Bonus Tax Calculator — Compare how a bonus is taxed under the flat 22% and aggregate (marginal) IRS supplemental-wage methods, including FICA.
• Break-Even Calculator — Find the units and revenue needed to break even from fixed costs, price, and variable cost per unit.
• Budget Calculator — Split your monthly income across needs, wants, and savings with the 50/30/20 rule or a custom budget.
• Business Loan Calculator — Calculate business loan monthly payments, total interest, and a full amortization schedule.
• Business Plan Template — Build a structured business plan outline section by section, ready to edit and share.
• Business Valuation Calculator —
• Capital Gains Tax Calculator — Estimate 2025 tax on short- or long-term capital gains with the 0/15/20% rates and the optional 3.8% Net Investment Income Tax.
• Cash Flow Calculator — Project your monthly cash balance and runway from starting cash and monthly inflows and outflows.
• Charitable Deduction Calculator — Estimate your deductible charitable contributions under the AGI limits, with carryover and tax savings.
• Commodity Price Calculator — Calculate prices for iron, steel, wood, cement, and other building materials.
• Credit Card Payoff Calculator — See how long to pay off a credit card, and how much the minimum-payment trap costs vs a fixed payment.
• Crypto Price Tracker — Track cryptocurrency prices and market data in real-time
• Crypto Tax Calculator — Match crypto sales to purchase lots First-In-First-Out to estimate 2025 short- and long-term capital gains and tax.
• Debt Payoff Calculator — Compare the debt snowball and avalanche strategies to see which clears your debts faster and cheaper.
• EMI Calculator — Calculate Equated Monthly Installments for loans with detailed amortization schedule.
• Estate Tax Calculator — Estimate 2025 federal estate tax above the $13.99M exclusion, at the top 40% rate.
• Franchise Fee Calculator — Estimate total franchise investment — the initial fee plus ongoing royalty and marketing fees over time.
• Gold Rate Calculator — Calculate gold prices in Tola, Masa, and Grams with live rates and purity options.
• Home Office Deduction Calculator — Compare the simplified ($5/sq ft) and actual-expense home office deduction methods.
• Income Tax Calculator — Estimate your income tax liability with bracket breakdowns for US, UK, India, Canada, and Australia.
• Inventory Turnover Calculator — Calculate inventory turnover ratio and days inventory outstanding from COGS and average inventory.
• Jewelry Metal Calculator — Universal calculator for any precious metal with custom rates and units.
• Loan Calculator — Calculate monthly payments, total interest, and amortization for auto, personal, and student loans.
• Medicare Tax Calculator — Estimate 2025 Medicare tax — the 1.45% base rate plus the 0.9% Additional Medicare Tax over your filing-status threshold.
• Mileage Deduction Calculator — Calculate your 2025 IRS mileage deduction for business, medical, and charitable driving.
• Net Worth Calculator — Calculate your net worth from your assets and liabilities, with a debt-to-asset ratio.
• Operating Expense Calculator — Calculate your operating expense ratio, operating income, and operating margin from revenue.
• Palladium Rate Calculator — Calculate palladium prices for jewelry with customizable unit settings.
• Paycheck Calculator — Calculate your net take-home pay after taxes, deductions, and withholdings.
• Payroll Tax Calculator — Break down 2025 FICA payroll tax into the employee and employer sides — Social Security, Medicare, and Additional Medicare.
• Platinum Rate Calculator — Calculate platinum jewelry prices with purity and weight conversions.
• Profit Margin Calculator — Calculate gross, operating, and net profit margins from revenue, COGS, and expenses.
• Property Tax Calculator —
• Quarterly Estimated Tax Calculator — Estimate 2025 quarterly estimated tax payments using the IRS 1040-ES safe-harbor rule (90% current or 100%/110% prior year).
• Retirement Calculator — Project your retirement savings and the annual income it could support at a 4% safe withdrawal rate.
• ROI Calculator — Calculate Return on Investment percentage, annualized returns, and profit/loss analysis.
• Sales Tax Calculator — Calculate US sales tax by state and local rate, or back the tax out of a tax-inclusive total.
• Savings Goal Calculator — Plan your savings with goal tracking, monthly contribution estimates, and growth timelines.
• Self-Employment Tax Calculator — Estimate 2025 self-employment (SE) tax — Social Security and Medicare — on freelance or 1099 net profit, with the half-deductible portion.
• Silver Rate Calculator — Calculate silver prices with unit conversions between Tola, Masa, and Grams.
• SIP Calculator — Calculate returns on Systematic Investment Plans with compound growth projections.
• Social Security Tax Calculator — Estimate how much of your Social Security retirement benefits is taxable using the IRS provisional-income rule (0/50/85%).
• Startup Cost Calculator — Estimate the capital to launch — one-time costs plus operating runway — and how far your capital lasts.
• Stock Portfolio Tracker — Manage stock portfolio with gains and losses tracking
• Tax Bracket Calculator — See your 2025 federal marginal vs effective tax rate with a bracket-by-bracket breakdown.
• Tax Deadline Calendar — Key 2025-2026 US federal tax deadlines with a downloadable calendar (.ics) file.
• Tax Refund Calculator — Estimate your 2025 federal tax refund or balance due from income, withholding, deductions, and dependents.
• W-4 Withholding Calculator — Estimate 2025 federal income tax from a Form W-4 and the per-paycheck withholding needed to break even, including line 4(c).

Generator

• API Documentation Generator — Generate formatted API documentation
• Advanced Barcode Generator — Generate various barcode formats with customization.
• Bio Generator — Generate social media bios and professional summaries.
• Border Radius Designer — Design CSS border radius with visual editor.
• Box Shadow Designer — Design CSS box shadows with visual editor.
• Color Mixer — Mix two or more colors together to create new colors.
• Color Palette Generator — Generate beautiful color palettes.
• Color Palette Generator — Generate harmonious color palettes from a base color.
• Color Shades Generator — Generate lighter and darker shades of any color.
• Credit Card Test Number Generator — Generate valid test credit card numbers for development.
• Cron Expression Builder — Build and validate cron expressions with visual builder and human-readable descriptions.
• CSS Background Pattern Generator — Generate repeating CSS background patterns.
• CSS Border Radius Generator — Design custom border radius for all corners.
• CSS Box Shadow Generator — Design custom box shadows with multiple layers and live preview.
• CSS Checkbox Generator — Design custom styled checkboxes with CSS.
• CSS Clip Path Generator — Create custom shapes using CSS clip-path property.
• CSS Cubic Bezier Generator — Design custom easing curves for CSS animations.
• CSS Glassmorphism Generator — Create frosted glass effects with blur and transparency.
• CSS Gradient Generator — Create beautiful linear and radial CSS gradients with live preview.
• CSS Loader Generator — Create animated CSS loading spinners and progress indicators.
• CSS Switch Generator — Create toggle switches with pure CSS.
• CSS Text Glitch Generator — Add glitch effects to text using CSS animations.
• CSS Triangle Generator — Create CSS triangles and arrows for any direction.
• Dendrite Fractal Generator — Generate dendrite fractal patterns with Canvas.
• Dummy Data Generator — Generate realistic fake data for testing and development.
• Email Template Generator — Create professional email templates
• Fake Data Generator — Generate fake names, addresses, emails, and more.
• Fake IBAN Generator — Generate valid fake IBAN numbers for testing purposes.
• Fractal Tree Generator — Create recursive fractal tree patterns with Canvas.
• Gradient Generator — Create CSS gradients visually.
• Hashtag Generator — Generate relevant hashtags for social media posts.
• Hilbert Curve Generator — Generate Hilbert space-filling curve patterns with Canvas.
• .htaccess Generator — Generate Apache .htaccess files for redirects and rules.
• Invoice Generator — Create professional invoices and export as PDF.
• MAC Address Generator — Generate random MAC addresses with custom prefixes.
• Meta Tag Generator — Generate HTML meta tags for SEO.
• Mock API Data Generator — Generate mock API responses.
• Number Sequence Generator — Generate number sequences with steps.
• Open Graph Generator — Generate Open Graph meta tags for social media sharing.
• Password Generator — Generate strong, random passwords.
• Pythagoras Tree Generator — Create Pythagoras tree fractal patterns with Canvas.
• Random Color Generator — Generate random colors in various formats.
• Random Number Generator — Generate random numbers in custom ranges.
• Random String Generator — Generate random strings with custom characters.
• React Native Shadow Generator — Generate cross-platform shadow styles for React Native apps.
• Regex Builder & Tester — Build and test regular expressions with visual builder, match highlighting, and replace mode.
• Robots.txt Generator — Generate robots.txt files for search engine crawlers.
• Safe App Identifier Generator — Generate valid Android and iOS app package identifiers from app name and domain.
• Safe File Name Generator — Generate OS-safe file names with proper extensions for any operating system.
• Safe Folder Name Generator — Generate OS-safe folder names that work on Windows, macOS, and Linux.
• Schema Markup Generator — Generate structured data markup for rich snippets.
• Sierpinski Triangle Generator — Draw Sierpinski triangle fractal with Canvas.
• Sitemap Generator — Generate XML sitemaps for websites.
• SQL Query Generator — Build SQL queries with visual form interface
• String Generator — Generate strings with patterns.
• SVG Blob Generator — Generate random organic blob shapes as SVG for backgrounds and designs.
• SVG Pattern Generator — Create seamless SVG patterns for backgrounds and designs.
• Table Generator — Generate HTML/Markdown tables from data.
• Twitter Card Generator — Generate Twitter Card meta tags for link previews.
• URL Slug Generator — Generate URL-friendly slugs from text.
• UUID Generator — Generate unique identifiers (UUID/GUID).

Growth

• Analytics Chat — Ask plain-English questions about your GA4 data. Your LLM key answers; we fetch the data via your Google OAuth.
• AI Article Writer — Multi-step prompt chain (outline → draft → polish) optimised for search and AI answer engines. Uses your own LLM key.
• AI Brand Visibility — See how ChatGPT, Gemini, Claude and Perplexity describe your brand. Parallel prompts to all four LLMs, with source citations and sentiment.
• Email Campaigns — Build and send newsletters using your own SMTP/Resend/Mailgun credentials. Templates, lists and send history — zero provider cost to us.
• GA4 Mastery — Prebuilt deep-analysis prompts that run against your GA4 data and return a full narrative report with charts and insights.
• GSC Mastery — Prebuilt deep-analysis prompts for Google Search Console data. Keyword gaps, position drops, winning queries — auto-explained.
• Keyword Research — Topic and long-tail keyword discovery using Google Suggest. No paid API, no per-query cost.
• Page Speed Scan — Core Web Vitals + performance audit via Google PageSpeed Insights. Desktop and mobile runs, grouped by actionable fix.
• AI Visibility Tracking — Track how often GPTBot, ClaudeBot, PerplexityBot and Google-Extended crawl your site. Embed a tiny pixel; watch the dashboard.
• Website Audit (SEO + AEO + GEO) — Full-page audit scoring search, AI-engine answerability, and generative-engine visibility. Enter a URL; get an actionable report.

Health

• Blood Alcohol Calculator — Estimate blood alcohol content (BAC) based on drinks, weight, gender, and time.
• BMR Calculator — Calculate your Basal Metabolic Rate using Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
• Body Fat Calculator — Estimate your body fat percentage using the US Navy method and BMI-based calculations.
• Calorie Calculator (TDEE) — Calculate your Total Daily Energy Expenditure and daily calorie needs for weight loss, maintenance, or gain.
• Child Growth Percentile Calculator —
• Contraction Timer — Time labor contractions with one tap — track each duration and interval, with rolling averages and a built-in 5-1-1 alert.
• Heart Rate Zone Calculator — Calculate heart rate zones for optimal training using Karvonen or percentage methods.
• Ideal Weight Calculator — Find your ideal weight range using Devine, Robinson, Miller, and Hamwi formulas.
• Intermittent Fasting Timer — Track fasting periods with timer and notifications
• Macronutrient Calculator — Calculate your optimal protein, carbohydrate, and fat intake for your fitness goals.
• Meal Planner — Plan weekly meals with customizable templates
• One Rep Max Calculator — Calculate your one-rep max (1RM) for any exercise using proven strength formulas.
• Ovulation Calculator — Track ovulation dates and fertile window based on menstrual cycle for family planning.
• Pregnancy Due Date Calculator — Calculate your estimated due date, current trimester, and pregnancy milestones.
• Pregnancy Weight Gain Calculator — Find your recommended pregnancy weight-gain range from pre-pregnancy BMI using IOM 2009 guidelines, for singleton or twin pregnancies.
• Protein Intake Calculator — Calculate daily protein needs based on weight, activity level, and fitness goals.
• Running Pace Calculator — Calculate running pace, finish time, or distance for races from 5K to marathon.
• Sleep Calculator — Find the best times to sleep and wake up based on 90-minute sleep cycles for optimal rest.
• TDEE Calculator Advanced — Calculate Total Daily Energy Expenditure with activity level, body composition, and goals.
• Waist-to-Hip Ratio Calculator — Calculate your waist-to-hip ratio (WHR) and see its WHO cardiovascular-risk band for men and women, in cm or inches.
• Water Intake Calculator — Calculate your recommended daily water intake based on weight, activity level, and climate.
• Workout Timer — Customizable interval timer for HIIT, Tabata, circuit training, and rest periods.

Image

• Add Border to JPG — Add colored borders to JPG images
• Add Text to GIF — Overlay text on GIF animations
• AI Background Remover — Remove backgrounds from images using AI - 100% private, no uploads
• Base64 to Image — Convert Base64 strings to images.
• Blur Image — Apply Gaussian blur effect to images with adjustable intensity.
• Cartoon Effect Generator — Apply cartoon effects to images using filters
• Change GIF Speed — Adjust GIF animation frame delay
• JPG Quality Changer — Adjust JPEG compression quality
• Change PNG Colors — Replace specific colors in PNG images
• Color Picker — Pick colors from images.
• PNG to WebP Converter — Convert PNG images to WebP format
• WebP to PNG Converter — Convert WebP images to PNG format
• Crop WebP — Crop WebP images to custom dimensions
• Duplicate Image Finder — Find duplicate images using perceptual hashing
• Extract GIF Frames — Export individual frames from GIF animations
• Favicon Generator — Generate all favicon sizes for web, iOS, and Android from a single image. Download as ZIP with HTML snippets and web manifest.
• Grayscale JPG — Convert JPG images to grayscale
• HEIC to PNG/JPG Converter — Convert iPhone HEIC photos to PNG, JPG, or WebP with smart compression. Batch processing supported.
• Image Average Color Finder — Extract average and dominant colors from any image in HEX, RGB, HSL formats.
• Image to Base64 — Convert images to Base64 strings.
• Image Border Tool — Add customizable borders to images.
• Image Color Extractor — Extract color palette with dominant colors from any image.
• Image Compressor — Reduce image file size.
• Image Cropper — Crop images to custom dimensions.
• Image Filters — Apply filters and effects to images.
• Image Filters & Effects — Apply artistic filters and effects to images.
• Image Format Batch Converter — Convert multiple images to different formats at once
• Image Metadata Viewer & Remover — View & strip EXIF, GPS and IPTC image metadata.
• Image Resizer — Resize images to specific dimensions.
• Image Rotate & Flip — Rotate and flip images with live preview.
• Image Steganography — Hide or reveal secret text inside a PNG image.
• Image Upscaler (AI) — Upscale images with AI-powered enhancement
• Image Watermark — Add text or image watermarks to images.
• Instagram Filters — Apply popular Instagram-style filters to your photos.
• Instagram Post Generator — Create Instagram-style post mockups.
• Passport Photo Maker — Create passport-sized photos with standard dimensions
• Photo Censor — Blur, pixelate, or black out sensitive areas in images.
• Photo Collage Maker Advanced — Create beautiful photo collages with multiple layouts
• Pixelate Image — Apply pixelation effect to images
• Pixelate JPG — Apply pixelation effect to JPG images
• Pixelate WebP — Apply pixelation effect to WebP images
• Remove GIF Background — Make GIF background transparent
• Remove WebP Background — Remove background from WebP images
• Replace WebP Colors — Replace colors in WebP images
• Reverse GIF — Reverse GIF animation frame order
• Reverse Image Search — Search images across Google, TinEye, and Bing
• Rotate PNG — Rotate PNG images by custom degrees
• Sharpen Image — Apply sharpening filter to images using convolution
• Smart Image Optimizer — Compress and convert images like TinyPNG. Supports HEIC, PNG, JPEG, WebP with intelligent optimization.
• Social Media Image Resizer — Resize images for social media platforms.
• SVG Optimizer — Optimize and minify SVG files.
• SVG to PNG Converter — Convert SVG to PNG images.
• Transparent JPG — Add alpha channel to JPG images
• Transparent PNG Maker — Make specific colors transparent in PNG images
• Transparent WebP — Make specific colors transparent in WebP images
• Tweet Generator — Create Twitter/X tweet mockups.
• Tweet to Image — Convert tweets to shareable images.
• Universal Image Converter — Convert any image format to any other format. Supports HEIC, PNG, JPG, WebP, AVIF, SVG, GIF, BMP, TIFF with built-in compression.
• Vimeo Thumbnail Grabber — Download thumbnails from any Vimeo video in high quality.
• YouTube Thumbnail Grabber — Download thumbnails from any YouTube video in multiple resolutions.

Legal

• Bill of Sale Generator — Generate a general bill of sale for a vehicle or item, ready to fill in, print, and sign.
• Contract Template Generator — Generate professional legal contract templates
• Cookie Policy Generator — Generate cookie policy with analytics and advertising disclosures.
• Disclaimer Generator — Generate legal disclaimers for websites and applications.
• EULA Generator — Create End-User License Agreement for software products.
• LLC Operating Agreement Generator — Generate a basic single- or multi-member LLC operating agreement template.
• Power of Attorney Generator — Generate a general or limited power of attorney template naming a principal and agent.
• Privacy Policy Generator — Generate GDPR & CCPA compliant privacy policies with multi-step wizard.
• Return & Refund Policy Generator — Create return and refund policy for e-commerce businesses.
• Terms & Conditions Generator — Create comprehensive terms of service for your website or app.

Math

• Add Commas to Integers — Format large numbers with comma separators
• BMI Calculator — Calculate Body Mass Index with health category analysis.
• Calculator — Perform basic and advanced calculations.
• Compound Interest Calculator — Calculate compound interest and investment growth.
• Discount Calculator — Calculate discounts, sale prices, and savings.
• Enumerate Integers — Generate a sequence of integers with custom start, end, and step
• Equation Grapher — Graph mathematical equations and functions interactively
• Expression Evaluator — Evaluate mathematical expressions safely.
• Fibonacci Generator — Generate Fibonacci sequences.
• Fraction Calculator — Add, subtract, multiply, and divide fractions.
• GCD/LCM Calculator — Calculate Greatest Common Divisor and Least Common Multiple.
• Increment Integer Digits — Add 1 to each digit in a number
• Generate Integer Pairs — Create pairs of integers from two ranges
• Visualize L-System — Draw L-system fractals using turtle graphics
• Look and Say Sequence — Generate the Look-and-Say sequence (1, 11, 21, 1211...)
• Matrix Calculator — Perform matrix operations (add, multiply, determinant, inverse)
• Mortgage Calculator — Calculate monthly mortgage payments and amortization.
• Number Formatter — Format numbers with commas, decimals, and more.
• Calculate Number Sum — Calculate the sum of a list of numbers
• Numbers to Words — Convert digits to written words (e.g., 100 → "one hundred")
• Pascal's Triangle — Draw Pascal's triangle up to N rows
• Percentage Calculator — Calculate percentages and percentage changes.
• Generate Pi Digits — Calculate Pi to a specified number of decimal places
• Prime Number Checker — Check if a number is prime.
• Pythagorean Calculator — Calculate sides of right triangles.
• Generate Random Matrix — Create a matrix filled with random numbers
• Reverse Integer Digits — Reverse the digits of a number (e.g., 123 → 321)
• Roman Numeral Converter — Convert between Roman and Arabic numerals.
• Salary Calculator — Convert between hourly, daily, weekly, monthly, and annual salary.
• Sort Numbers — Sort numbers in ascending or descending order
• Statistics Calculator — Calculate mean, median, mode, and standard deviation.
• Statistics Calculator — Calculate mean, median, mode, variance, and standard deviation.
• Tip Calculator — Calculate tips and split bills between multiple people.
• Words to Numbers — Convert written numbers to digits (e.g., "one hundred" → 100)

Media

• Audio Cutter/Trimmer — Trim and cut audio files with waveform display and precise start/end selection.
• Audio Format Converter — Convert audio files between MP3, WAV, OGG, FLAC, and AAC formats.
• Audio Joiner/Merger — Merge multiple audio files into one. Supports crossfade and gap adjustments.
• Audio Noise Reducer — Remove background noise from audio recordings
• GIF Maker from Images — Create animated GIFs from multiple images. Adjust speed, size, and loop settings.
• Image to Text (OCR) — Extract text from images using optical character recognition. Supports 100+ languages.
• QR Code Scanner — Scan QR codes using your camera or by uploading an image. Instantly decode any QR code.
• Screen Recorder — Record your screen, window, or browser tab with optional audio directly in your browser.
• Speech to Text — Convert spoken words to text in real-time using your microphone. Supports multiple languages.
• Video Compressor — Compress video files to reduce size while maintaining quality. Multiple output options.
• Video Subtitle Extractor — Extract subtitles from video files in SRT/VTT format
• Video Thumbnail Generator — Generate custom thumbnails from video frames
• Video to GIF Converter — Convert video files to animated GIFs with custom frame rate, dimensions, and quality.
• Voice Recorder — Record audio from your microphone with waveform visualization and instant playback.

Pdf

• Compress PDF Advanced — Reduce PDF file size with advanced compression options. Choose quality vs size balance.
• Delete PDF Pages — Remove specific pages from a PDF document.
• Excel to PDF Converter — Convert Excel spreadsheets to PDF documents with preserved formatting and page layout.
• Extract PDF Pages — Extract specific pages or page ranges from a PDF.
• Flatten PDF — Flatten form fields and annotations to make them non-editable.
• Image to PDF — Convert multiple images to a single PDF file.
• Merge PDF — Combine multiple PDF files into one document.
• Organize PDF — Reorder and rearrange PDF pages by dragging or using arrows.
• PDF Bookmark Manager — Add, edit, and manage PDF bookmarks
• PDF Form Filler — Fill out PDF forms digitally. Add text, checkmarks, and signatures to any PDF form.
• PDF OCR Text Extraction — Extract text from scanned PDF documents with OCR
• PDF Page Reorder — Rearrange pages in your PDF by drag and drop. Delete, duplicate, or rotate pages.
• PDF Reader — View and navigate PDF documents directly in your browser.
• PDF to Excel Converter — Extract tables from PDF files and convert them to Excel spreadsheets (.xlsx) for easy editing.
• PDF to Image — Convert PDF pages to high-quality images (PNG, JPEG, WebP).
• PDF to Text Extractor — Extract all text content from PDF files. Perfect for copying text from scanned documents.
• PDF to Word Converter — Convert PDF documents to editable Word files (.docx) while preserving formatting and layout.
• Protect PDF — Add password protection and restrictions to PDF documents.
• Rotate PDF — Change the orientation of PDF pages (90°, 180°, 270°).
• Sign PDF — Add your signature to PDF documents (drawn or typed).
• Split PDF — Divide a PDF into multiple files by page ranges or intervals.
• Unlock PDF — Remove password protection and restrictions from PDFs.
• Watermark PDF — Add customizable text watermarks to PDF pages.
• Word to PDF Converter — Convert Word documents (.doc, .docx) to PDF format with perfect formatting preservation.

Productivity

• Checklist Maker — Create checklists with categories, templates, and export to PDF or shareable links.
• Cover Letter Generator — Create tailored cover letters with professional templates and paragraph suggestions.
• Daily Planner Advanced — Plan your day with time blocks, priorities, and to-do lists. Drag and drop scheduling.
• Decision Wheel Spinner — Spin the wheel to make random decisions. Add your own options and let fate decide.
• Eisenhower Matrix Maker — Prioritize tasks using the Eisenhower Matrix framework
• Flowchart Maker — Design flowcharts with shapes, connectors, and text. Export as PNG or SVG.
• Goal Tracker — Track goals with milestones and progress visualization
• Habit Tracker — Track daily habits with streaks, statistics, and visual progress charts.
• Kanban Board — Organize tasks with customizable columns, drag-and-drop cards, and color labels.
• Meeting Cost Calculator — Calculate the real cost of meetings based on attendees, salaries, and duration.
• Meeting Notes Generator — Structure meeting notes with attendees, agenda, action items, and decisions.
• Mind Map Maker — Create interactive mind maps with drag-and-drop nodes, colors, and export to PNG.
• Project Timeline Maker — Create Gantt charts and project timelines. Visualize tasks, milestones, and deadlines.
• Resume Builder — Build professional resumes with multiple templates, real-time preview, and PDF export.

Seo

• Alt Text Generator — Generate descriptive, SEO-friendly alt text suggestions for images based on context and keywords.
• Breadcrumb Schema Generator — Generate BreadcrumbList JSON-LD structured data for rich search results with breadcrumb navigation.
• Canonical URL Checker — Validate canonical URL tags in HTML — detect missing, duplicate, or misconfigured canonical links.
• Heading Structure Checker — Validate H1-H6 heading hierarchy in HTML — detect missing levels, duplicate H1s, and improper nesting.
• Hreflang Tag Generator — Generate hreflang link tags for multilingual and multi-regional websites — supports all ISO language codes.
• Internal Link Analyzer — Analyze internal link structure from HTML — find orphan pages, broken links, and anchor text distribution.
• Keyword Density Analyzer — Calculate keyword frequency and density percentage in your content — find overused and underused keywords.
• Meta Tags Analyzer — Parse and validate meta tags from HTML — check title, description, Open Graph, Twitter Card, and viewport tags.
• Mobile SEO Checker — Check HTML for mobile-friendliness — validate viewport, touch targets, font sizes, and responsive design tags.
• Open Graph Debugger — Debug and preview Open Graph meta tags — see how your page will look when shared on Facebook, LinkedIn, and more.
• Page Speed Analyzer — Analyze HTML for page speed issues — detect render-blocking resources, large images, and unoptimized assets.
• Redirect Chain Checker — Analyze redirect chains and meta refresh tags in HTML — detect redirect loops, unnecessary hops, and SEO issues.
• Robots.txt Validator — Validate robots.txt syntax — check for errors, warnings, and test URL matching against your rules.
• SEO Checker — Comprehensive SEO audit — analyze HTML for meta tags, headings, images, links, and get an overall SEO score with actionable recommendations.
• SEO Content Analyzer — Analyze content readability, keyword usage, sentence structure, and SEO quality with an actionable score.
• SEO Score Calculator — Calculate a weighted SEO score for your content — checks readability, keyword usage, structure, and optimization level.
• SERP Preview — Preview how your page will appear in Google search results — optimize title, URL, and description for maximum CTR.
• Sitemap XML Generator — Generate valid XML sitemaps with URLs, last modified dates, change frequency, and priority settings.
• Structured Data Validator — Validate JSON-LD structured data — check schema.org types, required properties, and syntax errors.
• Twitter Card Validator — Validate Twitter Card meta tags and preview how your content will appear when shared on Twitter/X.

Text

• Add Prefix to Lines — Add custom prefix to the beginning of each line.
• Article Rewriter — Rewrite articles with advanced NLP algorithms
• ASCII Art Generator — Convert text to ASCII art with various fonts.
• Bionic Reading Converter — Convert text to bionic reading format for faster reading.
• Character Counter — Count characters with or without spaces in your text.
• Duplicate Line Remover — Remove duplicate lines from your text.
• Find & Replace — Find and replace text with support for regex patterns.
• Google Fonts Pair Finder — Find beautiful font pairings from Google Fonts for your designs.
• Grammar Checker — Check grammar and spelling errors with intelligent suggestions
• Join Strings — Join multiple strings with a custom delimiter.
• Letter Frequency Counter — Analyze character frequency in your text.
• Line Counter — Count number of lines and empty lines in text.
• Lorem Ipsum Generator — Generate placeholder text for your designs and mockups quickly.
• Multiple Whitespace Remover — Remove extra spaces and normalize whitespace in text.
• Palindrome Checker — Check if text is a palindrome (reads same forward and backward).
• Paraphrasing Tool — Rewrite text with synonyms while preserving meaning
• Pick Random Item — Randomly select one or more items from a list.
• Plagiarism Checker — Compare texts and detect similarities
• Random Text Generator — Generate random text and sentences.
• Reading Time Estimator — Estimate reading and speaking time for your text.
• Remove Unicode Font — Strip Unicode font formatting and return plain text.
• Repeat String — Repeat text or pattern multiple times.
• Sentence Counter — Count sentences, paragraphs, and text statistics.
• Shuffle Letters — Randomly shuffle all letters in text.
• Shuffle Lines — Randomly shuffle line order in your text.
• Shuffle Words — Randomly shuffle word order while keeping letters intact.
• Split String — Split text by delimiter or regular expression pattern.
• Spoof Unicode Text — Replace text with lookalike Unicode characters for visual effects.
• Text Case Converter — Convert text between uppercase, lowercase, title case, and more.
• Text Diff Checker — Compare two texts and see the differences highlighted.
• Text Reverser — Reverse your text, words, or letters instantly.
• Text Sorter — Sort lines alphabetically, numerically, or by length.
• Text Summarizer — Extract key sentences and create concise summaries
• Text to Handwriting — Convert typed text to handwritten style image.
• Text to Image — Convert text to PNG or JPG image using HTML5 Canvas.
• Text to Speech — Convert text to spoken audio using browser speech synthesis.
• Text to Unicode Font — Apply Unicode font styles (bold, italic, monospace, etc.).
• Text Trimmer — Remove extra spaces, newlines, and whitespace.
• Text Truncator — Truncate text to specified length with custom ellipsis.
• Word Counter — Count words, characters, sentences, and analyze your text instantly.
• Word Frequency Counter — Find most common words in your text.
• Zalgo Text Generator — Add diacritical marks to create creepy zalgo text effect.

Utility

• Age Calculator — Calculate age from birthdate.
• Alarm Clock — Set alarms with custom sounds, snooze, and a large digital clock display.
• Aspect Ratio Calculator — Calculate aspect ratios and resize dimensions proportionally for video, images, and displays.
• Barcode Scanner Advanced — Scan barcodes using your camera. Supports all major barcode formats and QR codes.
• BillableHours — Calculate billable hours and earnings with flexible time input and per-task rates.
• Bulk URL Checker — Check HTTP status codes for multiple URLs
• Code Beautifier — Format and beautify code (JS, CSS, HTML, JSON).
• Code Minifier — Minify code to reduce file size.
• Code to Image — Convert code snippets to beautiful images for sharing.
• Coin Flipper — Flip a virtual coin for heads or tails.
• Color Contrast Checker — Check WCAG color contrast ratios for accessibility.
• Advanced Color Picker — Pick colors with HEX, RGB, HSL support and eyedropper.
• Countdown Timer — Count down to a specific date and time.
• Credit Card Validator — Validate credit card numbers using Luhn algorithm.
• Date Calculator — Calculate date differences and add/subtract days.
• Date Difference Calculator — Calculate the difference between two dates.
• Device Info — View comprehensive browser, device, screen, and hardware information.
• Dice Roller — Roll virtual dice with customizable sides and quantity.
• Diff Checker — Compare text and code differences.
• Draw Digital Clock — Real-time digital clock display with canvas
• DNS Lookup Tool — Lookup DNS records (A, AAAA, MX, TXT, CNAME)
• Email Validator — Validate email address format and syntax.
• Emoji Picker — Search and copy emojis with categories and search.
• File Hash Calculator — Calculate file checksums (MD5, SHA-256, SHA-512)
• IBAN Validator — Validate International Bank Account Numbers (IBAN) with country and bank details.
• Invoice Generator Pro — Create professional invoices with line items, taxes, and discounts. Export as PDF.
• IP Lookup — Get information about IP addresses.
• Draw Memento Mori Calendar — Life calendar visualization showing weeks lived
• Notepad Online — Simple online text editor with auto-save, word count, multiple tabs, and export options.
• Password Strength Checker — Check password strength and get improvement suggestions.
• Phone Number Validator — Validate and format phone numbers.
• Pomodoro Timer — Productivity timer using Pomodoro technique.
• Random Name Generator — Generate random names for babies, businesses, usernames, fantasy characters, and pets.
• Receipt Generator — Generate receipts for purchases and payments. Customizable templates and PDF export.
• Regex Tester — Test and debug regular expressions with live matching.
• Scientific Calculator — Advanced calculator with trigonometry, logarithms, factorials, and expression history.
• Stopwatch — Precision stopwatch with lap times and history.
• Subnet Calculator — Calculate IP subnets, ranges, and CIDR notation.
• Timer & Stopwatch — Set timers and track time.
• Timezone Converter — Convert times between timezones.
• Twitter/X Ad Revenue Calculator — Estimate potential ad revenue earnings from Twitter/X posts.
• URL Validator — Validate URL format and check accessibility.
• User Agent Parser — Parse and analyze user agent strings.
• VIN Decoder — Decode Vehicle Identification Numbers (VIN) to get manufacturer, model, and year details.
• WHOIS Lookup — Get comprehensive domain registration information
• World Clock Converter — Compare times across multiple time zones. Schedule meetings across the globe.

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Last updated: 2026-07-23 · Open the app · GitHub