What is ToolMelt?
ToolMelt is a collection of 21 free online tools for developers, writers and anyone who works with text, data or documents: a JSON formatter, a PDF to image converter, a password generator, a regex tester, a cron expression parser and more. Every tool is a single fast page that does one job well.
Privacy first, by architecture
Most online tools upload your input to a server for processing. ToolMelt is different: every tool runs 100% in your browser with JavaScript. Your JSON, your PDFs, your passwords — nothing you type or drop into a tool ever leaves your device. This is not just a policy promise; it is how the site is built. There is nothing to leak because nothing is sent.
How it works
The site is served from Cloudflare's edge network, so pages load quickly anywhere in the world. There are no accounts, no sign-ups, no watermarks and no usage limits. The tools are free to use as much as you like.
Contact
Spotted a bug, want to suggest a tool, or have a question? See the contact page — feedback genuinely shapes the roadmap.