About Matchcheck

Matchcheck is a free tool for one everyday job: finding out exactly what changed between two files. A supplier sends a new price list. A colleague returns a contract. A deployment changes a config file. Matchcheck shows you what's different, in seconds.

Built around privacy

Most online comparison tools upload your files to their servers. Matchcheck doesn't. The comparison runs inside your browser, so your files are read and compared on your own device. We never see them, and nothing is stored.

Built to understand your files

A plain line-by-line comparison reports every reordered key and re-indented line as a change. Matchcheck's tools understand their formats. JSON keys can be in any order, XML attributes can move, and spreadsheet columns can be rearranged, and you'll still see only the changes that matter.

What you can compare

XML, JSON, HTML, YAML, CSV, Excel, PDF, Word and any text or code file. See all the tools on the home page.

Get in touch

Found a bug or have an idea? Email hello@matchcheck.online.