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JSON Diff

Compare two JSON documents side by side.

Original JSON
Modified JSON
Diff output
name: "quash"
+ ok: true
- version: 1
+ version: 2

What is JSON Diff?

JSON Diff compares two JSON documents and highlights added, removed, and unchanged values by path. Use it when reviewing API response changes, fixture updates, or config drift between environments.

How to use it

Paste the original JSON on the left and the modified JSON on the right. The diff updates automatically. Copy the text diff for tickets, PRs, or release notes. Format buttons help normalize messy input before comparing.

Use cases for QA and dev teams

API regression checks: compare staging vs production payloads after a deploy. Fixture maintenance: verify only intended fields changed in test data. Config audits: spot unexpected keys in feature flag or mobile remote config JSON. Release notes: export a readable diff for changelog entries.

Related tools

Pair this with our JSON Formatter for validation and pretty-printing, or the YAML/JSON/XML Converter when payloads move between formats.