JSON Diff & Compare

Compare two JSON objects online and see the differences highlighted. Find added, removed and changed values instantly. Free semantic JSON diff tool.

Your data never leaves your browser

JSON Formatter & Beautifier

Format and validate JSON with syntax highlighting online

JSON Validator

Check if your JSON is valid with detailed error messages

JSON Key Sorter

Sort JSON object keys alphabetically in ascending or descending order

Frequently Asked Questions

How does JSON diff work?

JSON diff compares two JSON objects semantically — it understands the data structure, not just text. It shows you exactly which keys were added, removed or changed, even in deeply nested objects.

Can I compare JSON arrays?

Yes. The tool compares arrays element by element and highlights any differences in values or order.