Complete guide to using JSON Diff — a free online tool by akousa.net.
Get started in seconds — no signup required
JSON Diff is a structural comparison tool that deeply traverses two JSON objects and highlights every difference — added keys, removed keys, and modified values — using clear color coding.
Works directly in your browser — no downloads needed
All processing happens locally — your data never leaves your device
Download your results in multiple formats
Fully responsive design works on any device
Paste your original JSON in the left panel and the modified JSON in the right panel. Click Compare to see all differences highlighted in color. Use Swap to reverse the comparison, Format Both to pretty-print both inputs, and Copy Diff to export the results.
JSON Diff is a free, browser-based tool that runs entirely on your device — no signup, no uploads, and no tracking. Built for speed and privacy, it gives you instant results without leaving the page.
Developers, designers, students, and everyday users rely on this tool for quick, accurate results. It's especially popular among people who need a reliable utility without installing software or signing up for an account.
Looking at alternatives to JSON Diff? Here's how we compare to similar tools available online.
| Feature | akousa.net | Other tools |
|---|---|---|
| Price | Free forever | Often paid or freemium |
| Privacy | Runs in your browser | Data sent to servers |
| Signup | Not required | Account often required |
| Ads & tracking | None | Ads and trackers common |
| Usage limits | Unlimited | Daily or file-size limits |
Add JSON Diff to your own website with a single line of code — free, no signup required.
Get embed codeJSON Diff is also available as a developer API for use in your own apps and workflows.
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