How to use: JSON Diff
JSON Diff is a free online JSON Tools tool that compare two JSON documents deep-equal and list every added, removed and changed path instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
Description
Compare two JSON documents deep-equal and list every added, removed and changed path.
- JSON Tools
- Because everything is computed client-side, JSON Diff is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using JSON Diff takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Run
Examples
Document A. Paste document B into the second field to see added, removed and changed paths.
Input
{"name":"Ada","roles":["admin"],"version":1,"active":true}
Output
+ /org "NRL" ~ /name "Ada" → "Grace" + /roles[1] "dev" ~ /version type number → string (1 → "1.0") 4 difference(s): +2 added, -0 removed, ~2 changed (+ = only in B, - = only in A, ~ = value changed)
This output was produced by actually running the tool, not written by hand.
Use cases
Common situations where JSON Diff helps:
- Compare two JSON documents deep-equal and list every added, removed and changed path.
Parameters
This tool has no options — it works on the input alone.
FAQ
What is JSON Diff?
JSON Diff compare two JSON documents deep-equal and list every added, removed and changed path. It runs entirely in your browser, so your data stays private.
Is JSON Diff free to use?
Yes. JSON Diff is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.
Good to know
- Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.