Compare Two JSON Objects Side-by-Side Online
Compare two JSON objects or files side-by-side online to detect structural differences. Identify added keys, removed values, and modified properties instantly with color-coded diff highlights, automatic key sorting, and key-value comparison directly in your browser. Need to format or repair broken JSON before comparing? Use our JSON Formatter & Validator. Need to query or filter specific paths? Try our JSONPath Tester or flatten nested structures with our JSON Flattener.
How to Compare JSON Files Online
- Paste Original JSON: Input your original or baseline JSON into the Original JSON pane.
- Paste Modified JSON: Input your updated or modified JSON into the Modified JSON pane.
- Select Comparison Options: Toggle options like Sort Keys or Ignore Key Order to control matching logic.
- View Differences: Click Compare JSON to see visual side-by-side diff highlights (green for additions, red for deletions, amber for modifications).
Key Features & Capabilities
- Side-by-Side Visual Diff: Clear comparison view with visual color highlights and delta breakdown.
- Deep Recursive Comparison: Traverses nested objects and arrays to locate deep structural modifications.
- Key Sorting Option: Normalize key ordering before comparing to prevent false positive diffs caused by key reordering.
- Delta Summary Count: Displays total count of additions, deletions, and modified values at a glance.
- Private Browser Processing: Your JSON inputs are processed locally in your browser and aren't uploaded to TinyTools for comparison.
Related JSON Tools
- JSON Formatter & Validator – Format and clean JSON syntax before running a comparison.
- JSON Flattener – Convert nested JSON into flat key-value pairs.
- JSONPath Tester – Extract and query specific JSON paths.
- Text Diff Checker – Compare plain text and code line-by-line.