OpenAPI Contract Explorer
Paste OpenAPI JSON or YAML to explore endpoints, schemas, local refs, and contract risks in the browser.
OpenAPI Contract Explorer
Paste OpenAPI JSON or YAML to explore endpoints, schemas, local refs, and contract risks in the browser.
About OpenAPI contract exploration
Local parsing for private API specs
The explorer parses JSON and YAML directly in your browser. It does not upload API paths, schemas, tokens, examples, or internal service names to a server.
Semantic diff focuses on contract risk
Diff mode highlights removed endpoints, removed response statuses, required-field additions, schema type changes, property type changes, and enum removals. It is a review aid, not a replacement for full API compatibility testing.
FAQ
Common questions and answers about this topic.
Which OpenAPI versions are supported?
The explorer supports OpenAPI 3.0 and 3.1 documents in JSON or YAML. Swagger 2.0 is not normalized by this tool.
What does Diff mode detect?
It detects contract-level risks such as removed endpoints, removed response statuses, added required fields, schema type changes, property type changes, and removed enum values.
Is my API spec uploaded?
No. Parsing, reference extraction, risk checks, and diffing run in your browser.