JSON Diff
Compare two JSON objects side by side and instantly see every difference — additions, removals, and changes — highlighted with color coding. Runs entirely in your browser.
Open JSON DiffFeatures
Deep Compare
Recursively compares all nested objects and arrays.
Color Coded
Green for added, red for removed, yellow for changed.
Instant Results
See differences the moment you click Compare.
Fully Private
All processing happens locally in your browser.
Frequently Asked Questions
How does the JSON diff comparison work?
The tool parses both JSON inputs and performs a deep recursive comparison. It walks through every key and value in both objects, detecting additions, removals, and value changes. Arrays are compared element by element, and nested objects are traversed recursively.
Can it compare deeply nested JSON?
Yes. The comparison is fully recursive, handling any depth of nesting. Each difference shows the full JSONPath to the changed value (e.g., $.address.city), making it easy to locate changes in complex structures.
Is my JSON data sent to a server?
No. The entire comparison runs in your browser using JavaScript. Your JSON data never leaves your device, making it safe for sensitive or proprietary data.
Related JSON Tools
JSON Formatter
Format & validate JSON
Try itJSON Validator
Check JSON syntax
Try itJSON Beautifier
Prettify JSON
Try itJSON Minifier
Compress JSON
Try itJSON to CSV
Convert JSON to spreadsheet
Try itJSON to YAML
Convert JSON ↔ YAML
Try itJSON to TypeScript
Generate TS types
Try itJSONPath Finder
Query & extract JSON data
Try itJSON Schema Generator
Generate schema from JSON
Try it