About

A toolbox built for everyday debugging

DevKit Tools keeps the small utilities you reopen while debugging in one place. It is made by Brook, an IT enthusiast.

Updated September 22, 2026

What this site is

It is for people who write code and chase bugs: JSON formatting, JWT decoding, hashes, regular expressions, encoding, time and text. Open a page and use it.

The default is to finish the work in your browser. There is no account, and what you paste into a tool is not uploaded. A few network checks cannot work without a connection; those pages say so.

Who makes it

The author is Brook, an IT enthusiast. The site exists because debugging meant jumping between too many single-purpose websites. The aim is one quiet place for the usual tools, where it is obvious whether your data leaves the browser.

One person maintains it. There is no team and no investor. Ads on the pages pay for hosting.

Say hello

If a tool is wrong, a tool you need is missing, or you have a question about privacy or ads, send an email. It is a personal inbox. Messages are read, but not always answered the same day.