toolspace is a set of everyday developer tools: a diff checker, JSON tools, encoders and decoders, text and code tools, generators and more. They are free to use, with no account and no usage limits, and the code is open source.
Your data stays on your device
Every tool does its work in your browser. The text you paste, the files you open, and the tokens, passwords and colors you work with are processed in the tab and never sent to a server. Close the tab and they are gone.
Files are read locally and never uploaded. Share links in the diff checker keep both texts in the part of the address after #, which browsers never send to any server.
How can it be free?
Because the work happens on your device, there are no servers doing it and no per-use cost to recover. The site is a set of static files, so running it costs very little, and every tool stays free with no paid plan.
Open source
The code is MIT licensed. You can read it, run your own copy, or contribute a fix or a new tool on GitHub.
Get in touch
Questions, bugs or ideas for a new tool are welcome on the contact page.