OpenAPI Schema Validator
Check a JSON OpenAPI or Swagger envelope for version, info and paths. Use the appropriate specification tools for full document validation.
Check a JSON OpenAPI or Swagger envelope for version, info and paths. Use the appropriate specification tools for full document validation. The scope note below explains what needs separate review.
OpenAPI Schema Validator is a free Developer Utilities utility that runs entirely in your browser — nothing you enter is uploaded.
How to use OpenAPI Schema Validator
- Paste the documented input format into the input field.
- Read the limited checks and any reported missing fields.
- Use a full implementation or the relevant consumer’s test for complete validation.
About this tool
Parses JSON and checks for openapi or swagger, info.title, info.version and paths; an openapi value is checked for a 3. prefix. It does not parse YAML, resolve references or validate paths, operations, responses, parameter schemas or the complete specification. A passed basic check does not establish a valid OpenAPI document.
Review the generated values before publication. JSON serialization alone does not establish vocabulary correctness or search-feature eligibility.
Frequently asked questions
What does OpenAPI Schema Validator do?
Check a JSON OpenAPI or Swagger envelope for version, info and paths. Use the appropriate specification tools for full document validation.
Do I need an account for OpenAPI Schema Validator?
No — OpenAPI Schema Validator needs no account, sign-up or installation.
Where is my data processed by OpenAPI Schema Validator?
Entirely in your browser — OpenAPI Schema Validator keeps your data on your own machine and sends nothing anywhere.
Does this tool validate a complete OpenAPI document?
Parses JSON and checks for openapi or swagger, info.title, info.version and paths; an openapi value is checked for a 3. prefix. It does not parse YAML, resolve references or validate paths, operations, responses, parameter schemas or the complete specification. A passed basic check does not establish a valid OpenAPI document.
Does OpenAPI Schema Validator work offline?
Once the page has loaded, OpenAPI Schema Validator keeps working with no network connection.