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🔒 Local processing
Local developer utility

OpenAPI Diff

Compare OpenAPI 3 documents for removed operations and potentially breaking schema or parameter changes. Your input stays in your browser while you work.

OpenAPI Diff🔒 Processed locally

OpenAPI 3.0/3.1, local references only. Highlights removals, required inputs, response changes and schema changes for review. This is a conservative report, not a complete compatibility proof.

How to use OpenAPI Diff

Complete the labeled fields above, choose an action, and inspect the result before copying or downloading it.

Processing runs locally in this browser. No input is uploaded or sent to a conversion service.

OpenAPI 3.0/3.1, local references only. Highlights removals, required inputs, response changes and schema changes for review. This is a conservative report, not a complete compatibility proof.

Inputs

  • Original OpenAPI JSON or YAML
  • Updated OpenAPI JSON or YAML

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