🔍 JSON Diff offline
Free offline JSON diff tool. Compare two JSON objects and find differences in your browser.
JSON 1 (Original)
JSON 2 (New)
About JSON Diff
JSON Diff compares two JSON objects and highlights the differences between them. It's useful for debugging API responses, comparing configuration files, or tracking changes in data structures.
Features
- ✓Compare two JSON objects side by side
- ✓Identify added, removed, and changed fields
- ✓Deep comparison of nested structures
- ✓Color-coded difference highlighting
- ✓Show path to each difference
- ✓Works offline in your browser
How to Use
- 1.Paste the first JSON object into JSON 1
- 2.Paste the second JSON object into JSON 2
- 3.Click "Compare JSON" to find differences
- 4.Review added (green), removed (red), and changed (yellow) fields
How to Use
Paste your original JSON on the left and the new JSON on the right, then click Compare. The diff output lists added, removed, and changed fields with exact paths so you can jump straight to what changed. I use this when API responses shift between environments or when config files drift between branches.
- Paste JSON 1 and JSON 2.
- Click Compare JSON.
- Scan the diff list for added, removed, or changed paths.
- Fix the source data or update your schema.
Use Cases
I reach for a JSON diff when:
- Comparing API responses between staging and production.
- Reviewing config changes in JSON-based settings files.
- Testing migrations to ensure data shape did not change unexpectedly.
- Debugging regression bugs tied to payload changes.
Tips & Best Practices
Format before comparing
Consistent formatting makes differences easier to interpret, especially with nested objects.
Watch for array order
If order does not matter, sort arrays first to avoid noisy diffs.
Use the path output
Paths like user.profile.email tell you exactly where a change happened.
Confirm types, not just values
Type changes can break clients even if the field name stays the same.
Comparison with online tools
Online diff tools require uploading both payloads. When I am comparing production responses or internal configs, I prefer local processing. TurboUtil keeps the data in the browser and returns results instantly.
Online diff tools
- Upload both JSON payloads
- Possible data retention
- Depend on network latency
- Less suitable for sensitive data
TurboUtil
- Client-side comparison
- No uploads or tracking
- Works offline after load
- Immediate diff output
FAQ
Does this compare nested objects?
Yes. The diff is recursive, so nested objects and arrays are compared deeply.
Why are arrays showing lots of changes?
Array order matters. If order is not important, sort the arrays first to reduce noise.
Is my JSON uploaded?
No. Both payloads stay in your browser.
Can I use this for large payloads?
Yes, but extremely large payloads may be slow. I usually diff smaller subsets when possible.