Utility tools

45 tools in this category.

• regex-tester — Test and debug regular expressions with live matching.
• diff-checker — Compare text and code differences.
• 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.
• billable-hours — 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-converter — 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.
• 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.
• 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.
• 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 — 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.
• scientific-calculator — Advanced calculator with trigonometry, logarithms, factorials, and expression history.
• stopwatch-timer — Precision stopwatch with lap times and history.
• subnet-calculator — Calculate IP subnets, ranges, and CIDR notation.
• timer — Set timers and track time.
• timezone — Convert times between timezones.
• twitter-ad-revenue-generator — Estimate potential ad revenue earnings from Twitter/X posts.
• url-validator — Validate URL format and check accessibility.
• user-agent — 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.