Tools running in your browser, no server, free, and open-source!

Open Source

The code is hosted on GitHub, both the website and the tools.


Everything is happening in your browser. We are not using cookies or trackers.

No ads, free

We won't ask you to pay a fee or put ads everywhere.


We will show you the complete solution. No register. No "disable AdBlock to see the steps".


We are putting ourselves in your shoes and making tools that are usable and convenient to use. We are open to suggestions and ways to improve.


We are writing tests and documentation before coding, as we are hoping to make the code as readable and clean as possible, in case you are curious as to how we coded something.