Free forever · No tracking · Open source
The small developer utilities you use every day, in one place.
25 tools for colors, text, encoding, hashing, JWTs, screenshots and more. Use them on the web or right from your browser toolbar. Your data never leaves your machine.
Developer tools
Everything works in the web app. Browser tools need the extension.
Generate
Create and generate content
Text Tools
Process and manipulate text
Colors
Work with colors and palettes
Browser Tools
Browser and extension utilities
Browser extensions
The same tools, one click away in your toolbar.
Chrome
Available now
Every tool plus extension-only features: screenshots, eyedropper, window resizer, and more.
Add to Chrome
Firefox
Coming soon
We're working on a Firefox version.
Safari
Coming soon
We're working on a Safari version.
Why Mini Dev Tools
A non-profit project to make developers' lives a little easier.
Privacy first
Most of these tools exist because third-party alternatives weren't private. We don't collect, analyze, or sell your data — everything runs in your browser.
Everything in one place
Stop hunting for a different website for every small task. One app, one extension, one consistent set of tools.
Free and open source
All features are free today and will stay free. The code is open for collaboration — suggestions and requests are welcome.