Site

About fixjson.org

fixjson.org is a free collection of browser-based developer tools for repairing JSON, comparing structured data, validating YAML, and encoding text.

What this site is for

fixjson.org helps developers clean up malformed JSON, compare API responses, validate YAML, stringify text, and encode or decode common transport formats without opening a backend account.

Local-first tools

The editor, repair logic, diff logic, validation, formatting, and copy actions run in the browser tab. Tool input is not intentionally uploaded to a fixjson.org server for processing.

Free and ad-supported

The tools are free to use. If Google AdSense approval is granted, the site may show ads around the page while keeping the core tool workflow available.