JSON Compare
This free online tool helps you easily compare differences in your JSON data
Compare two JSON documents side by side to spot differences instantly. Essential for debugging API responses, verifying config changes, and data validation.
JSON Compare
This free online tool helps you easily compare differences in your JSON data
About this tool
Compare two JSON documents side by side to spot differences instantly. Essential for debugging API responses, verifying config changes, and data validation.
Please enter the JSON you want to compare in the box below.
Please enter the JSON you want to compare in the box below.
FAQ
Common questions and answers about this topic.
What does this tool do?
Compares two JSON documents and highlights differences — added, removed, and modified fields.
Does it handle nested objects?
Yes, deep comparison works on all nesting levels.
Can I sort keys before comparing?
Yes, the Sort Keys toggle is enabled by default, which sorts object keys alphabetically before comparing. You can disable it to compare with the original key order.
Is my data sent to any server?
No, JSON comparison runs entirely in your browser. Both documents are parsed and diffed locally with JavaScript — neither is sent to any server.