Does it compare arrays?

Yes, arrays are compared element by element.

Is it case-sensitive?

Yes, JSON keys are case-sensitive. "Name" and "name" are different keys.

JSON Diff / Compare — Compare two JSON objects and see exactly what changed.

How to use JSON Diff / Compare

Paste your input on the left, choose the options you want, and the output appears instantly on the right. Everything runs in your browser — none of your data is sent to a server.

Paste or type your input in the INPUT panel
The output regenerates automatically as you type
Use Copy to put the result in your clipboard
Click Sample to load a working example

What is JSON Diff / Compare?

JSON Diff compares two JSON objects and highlights additions, removals, and changed values. Perfect for debugging API responses, comparing configuration files, or reviewing data migrations. All processing happens in your browser. This tool is part of santekno's developer toolbox — a curated collection of utilities built for engineers who care about speed, privacy, and simplicity.

Common use cases

Debugging API payloads and integration issues
Inspecting tokens, hashes, or encoded strings during development
Generating fixtures and sample data for tests
Sharing readable output with teammates in code reviews

FAQ

+ indicates a key/value that exists only in the second (right) JSON.