JSON Compare (Diff)
Compare two JSON documents and list added, removed and changed keys with their paths.
100% free No signup Private & offline-ready Works in your browser
About JSON Compare (Diff)
Spot exactly what changed between two API responses, config files or database records. The comparison is structural — key order doesn't matter — and every difference is listed with its full path, such as owner.city or tags[1].
Frequently asked questions
Is JSON Compare (Diff) free?
Yes. JSON Compare (Diff) on Apex Tool Station is 100% free with no signup and no watermark. Browser tools have no usage limits.
Are my files or data uploaded to a server?
No. Everything runs locally in your browser using JavaScript. Your files and text never leave your device, which makes it safe for private documents.
Does it work on mobile?
Yes. The tool works on any modern browser on Android, iPhone, Windows, Mac and Linux.