JSON Diff
Compare two JSON documents with side-by-side text diff and structural tree view. Character-level highlighting, change navigation, sort keys, drag & drop, and export — all 100% in your browser.
Two views. Zero uploads. Every feature.
Side-by-side text diff with character-level highlights, plus a structural tree view that understands JSON semantics. Sort keys, navigate changes, export diffs — all in your browser.
| Feature | jsondiff.com | jsoncompare.com | json-diff.com | extendsclass | Ours |
|---|---|---|---|---|---|
| Free & unlimited | ✓ | ✓ | ✓ | ✓ | ✓ |
| No account needed | ✓ | ✓ | ✓ | ✓ | ✓ |
| Data stays in browser | ✗ | ✓ | ✓ | ✗ | ✓ |
| Semantic (tree) diff | ✓ | ✓ | ✗ | ✓ | ✓ |
| Side-by-side text diff | ✗ | ✗ | ✓ | ✗ | ✓ |
| Character-level highlights | ✗ | ✗ | ✗ | ✗ | ✓ |
| Collapsible tree view | ✗ | ✗ | ✗ | ✗ | ✓ |
| Change navigation | ✗ | ✗ | ✗ | ✓ | ✓ |
| Sort keys option | ✗ | ✓ | ✗ | ✗ | ✓ |
| Copy JSON path | ✗ | ✓ | ✗ | ✗ | ✓ |
| Export / download diff | ✗ | ✗ | ✓ | ✗ | ✓ |
| Drag & drop upload | ✗ | ✓ | ✗ | ✓ | ✓ |
| No ads | ✓ | ✗ | ✗ | ✗ | ✓ |
Competitor information was accurate at time of publication and may have changed.
Guides & tutorials
How to Compare JSON Files Online for Free
Compare two JSON files side by side with a structural diff. See additions, deletions, and modifications highlighted in a collapsible tree — 100% in your browser.
Compare Two JSON API Responses
Paste two JSON API responses side by side and instantly see every structural difference. Perfect for debugging staging vs production, before/after deploys, and regression testing.
Diff JSON Config Files Between Environments
Compare JSON configuration files between dev, staging, and production to catch config drift. Structural diff highlights every missing key, changed value, and new addition.
How to Beautify and Format JSON Online for Free
Beautify, format, and validate JSON instantly in your browser. Pretty print with customizable indentation, convert to YAML/XML/CSV — no upload required.