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Text compare

Paste OpenAPI 3.x (JSON or YAML) for a structural diff, or any text for a line-by-line comparison — everything runs in your browser.

Enter text or JSON in at least one box before comparing.

Before (expected)
After (candidate)

For OpenAPI specs: external $ref URLs are not fetched. Breaking / risky / additive labels appear in exports (PR / Markdown). For plain text, you get a line-by-line diff (no exports).