Welcome to ZTools Documentation
ZTools is a free collection of 520+ browser-only developer & creator tools — JSON formatters, password generators, image compressors, regex testers, QR generators, PDF tools, and more. Every tool runs entirely in your browser. No signup, no upload, no data leaves your device.
This site documents how each tool works — with real use cases, worked examples, FAQs, and tips you won't find on the app pages alone.
What you can do here
- Browse all tools — see the full catalog organized by category.
- Read in-depth guides — task-oriented how-to guides covering common workflows.
- Reference release notes — the blog tracks new tools, improvements, and the dev journal.
- Open the app — every documented tool links directly to ztools.zaions.com.
Why ZTools exists
Most "free online tools" upload your data to a server, run paid analytics on you, or hide the actual product behind ads. ZTools is the opposite: open-source documentation, browser-only processing, no tracking that you can't disable, no upsell, no email gate.
The full source code for the documentation site you're reading is on GitHub — fork it, audit it, contribute fixes.
How content is organized
| Section | What's there |
|---|---|
| All tools | Every documented tool, grouped by category |
| Guides | Long-form how-to guides spanning multiple tools |
| Blog | Release notes, deep-dives, and the dev journal |
| Changelog | Version history |
Privacy & honesty
ZTools tools are browser-only by design. The privacy policy details exactly what happens with your input data (almost always: nothing — it stays on your device).
When a tool has limits, this documentation says so explicitly. We don't claim "all-in-one solution" when a tool only handles 80% of cases. Honest framing earns more trust than marketing copy.
Author: Ahsan Mahmood · Last updated: 2026-05-06 · Open ZTools ↗