Every tool,
sharper. Right here.
Aworkshop of 504+ browser tools — images, PDFs, calculators, and developer utilities — that run entirely on your machine. No login. No uploads. Your files never leave this tab.
This is what every tool looks like.
One focused job per page. Drop input, see output, copy it. No ads, no upsells, no wait.
JSON Formatter
Pretty-print and validate JSON — runs entirely in your browser.
{"user": {"name": "Ada","email": "ada@lovelace.io","plan": "pro","active": true,"since": 2026,"tools_used": ["image-compressor","json-formatter","qr-code"]}}
One tool. One job. Zero uploads. Every time.
Popular tools, right now.
The dozen tools opening most often this week. Click once to use — nothing uploads, nothing is stored.
Simple, from open to done.
Pick a tool
Browse 500+ tools or search by name.
Use it instantly
Drop a file or paste text — it runs locally.
Download results
Nothing is stored. Your data stays yours.
Pick a tool. Start using it.
No signup. No upload. No waiting. Every tool opens in a single click and runs right here, right now.
Frequently asked questions.
01What is ToolHaven?+
ToolHaven is a collection of 500+ free online tools for images, PDFs, calculators, text processing, developer utilities, and more. Every tool runs entirely in your browser — no server uploads, no accounts, no data collection.
02Is it really free?+
Yes. Every tool is free, forever. No tier, no paywall, no ads. We don’t monetize you.
03Do I need to sign up?+
No. There is no account system. Open a tool, use it, leave. We don’t remember you — we couldn’t if we wanted to.
04Where does my data go?+
Nowhere. All processing happens locally in JavaScript, on your machine. Files are never uploaded. We literally cannot see what you’re working on.
05Does it work offline?+
Once a tool has loaded in your browser, it works offline. No network round-trips for any operation.
06Can I use ToolHaven on mobile?+
Yes — every tool is responsive and works across desktop, tablet and mobile.