About Code Beautifier

Code Beautifier is a set of 101 developer tools for formatting, converting, and validating JSON, SQL, XML, YAML, tokens, and config files. Every tool runs inside your browser tab, so the logs, keys, and schemas you paste stay on your device.

Who builds it

The site is built and maintained by Suman Kumar, who also writes the blog posts and the error reference. More of that work is on X and GitHub.

How the tools work

Formatting, conversion, hashing, and validation all happen in local browser memory with JavaScript and the Web Crypto API. There is no server-side formatter to send your input to. The one exception is a share link: when you choose to create one, that snippet is stored for 7 days and then deleted. The privacy policy lists exactly what is collected, including the analytics services in use.

What else is here

Alongside the tools there are 15 cheat sheets, an error reference with 47 in-depth fix pages, and a blog. Each fix page names a real parser message from one of the tools and shows an input that triggers it, so you can reproduce the error on the page before applying the fix.

How it is funded

The site carries no ad networks. Instead it offers sponsorships and self-hosting licenses for teams that need the tools inside their own network. The open-source libraries it is built on are credited on the licenses page.

Contact

Found a bug, a wrong answer on a fix page, or a tool that is missing? Email feedback@codebeautifier.app. To request removal of a share link, write to takedown@codebeautifier.app.