Compare JSON Payloads
Compare two JSON objects and spot changes locally in your browser.
WHY THIS TOOL EXISTS
Browser JSON diff comparison
Compare two JSON payloads locally to see what has changed, been added, or removed between them. The tool performs a deep recursive comparison and reports every difference with its full path, making it easy to spot changes in complex nested structures. It is useful for API response diffs, configuration drift detection, and verifying data migrations.
Benefits: Instant recursive diff with full dot-notation paths, detects additions, removals, and value changes, handles deeply nested objects and arrays, all data stays in your browser for complete privacy, clear count of total differences found.
Best for: Comparing API responses before and after changes, detecting configuration file drift between environments, verifying database migration results, reviewing JSON schema changes, debugging webhook payload differences, and validating data transformations.
Limitations and tradeoffs
- Does not support side-by-side visual highlighting of changed lines
- Array comparison is index-based, so reordered arrays will show many false differences
- Requires valid strict JSON input, does not accept JSON5, comments, or trailing commas
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