Starter plan · 7-day free trial

Semantic DiffPro

Compare JSON by meaning, not just characters — and know if it's a breaking change.

Semantic Diff is a Starter feature

Know immediately whether an API change is safe to deploy or will break existing clients — before it's a 2am incident instead of a code review comment.

Starter · $10/mo · 7-day free trial

Why use this semantic diff

Rename detection

Distinguishes a renamed field from an unrelated add+remove pair.

Breaking vs. non-breaking

Every change is classified so you know exactly what actually risks breaking a client.

Risk level + migration suggestions

Get an overall compatibility risk level and a concrete suggestion for every breaking change.

About the Semantic Diff

Compare two versions of a JSON document and get a compatibility report: added fields, removed fields, renamed fields, type changes, and value changes — each classified as breaking or non-breaking, with an overall risk level and migration suggestions.

Frequently asked questions

JSON Diff reports every value difference; Semantic Diff focuses on structural/type changes and classifies each one as breaking or non-breaking — the right tool for "did this change break my API contract?"

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