Health endpoint
openapi: 3.1.0 with /health GET response
Valid OpenAPI 3.x structure.
Formatters
OpenAPI Validator
Validate core OpenAPI document structure for JSON or YAML specs.
At a glance: This OpenAPI validator checks the core structure of OpenAPI 3.x documents locally in your browser. It verifies the openapi version, info metadata, paths object, operations, and response blocks so common API spec mistakes are easier to spot.
Your input is processed locally in your browser and is not uploaded to ByteBench servers.
Loading browser tool.
How to use this tool
- Paste or type your input into the tool area.
- Choose the mode or options that match your task.
- Review validation messages before copying the output.
- Use the example button when you want a known-good starting point.
Examples
Common use cases
- Check a small OpenAPI spec before sharing.
- Find missing info or responses fields.
- Validate local API documentation snippets.
When to use this tool
Use this openapi validator page when you need to validate OpenAPI JSON or YAML specs quickly during debugging, review, migration, or documentation work and want to keep raw input in your browser session.
If your task shifts, JSON Schema Validator and YAML Validator are usually the next useful tools.
Input and output expectations
- Expected input shape: Paste valid structured data (JSON, CSV, YAML, XML, HTML, SQL, or spec text) in the expected format.
- Typical output: Normalized output intended for review, copy, or handoff to your project files.
- Quick input example: openapi: 3.1.0 with /health GET response
- Quick output example: Valid OpenAPI 3.x structure.
Common mistakes to avoid
- Pasting partially broken syntax and assuming the output is production-ready.
- Skipping validation messages before copying output.
- Using formatter output as a substitute for contract or integration tests.
Notes and edge cases
This tool validates common structural requirements and does not fetch remote $ref files. Full specification linting may require a dedicated OpenAPI CLI in CI.
For privacy-sensitive data, keep using the tool in a trusted browser session and avoid pasting secrets into shared screens, screenshots, browser extensions, or remote support sessions.
FAQ
Does this OpenAPI validator upload my input?
No. This OpenAPI validator runs in your browser and does not send your input to ByteBench servers.
What input format works best in this OpenAPI validator?
Use clean OpenAPI 3.x JSON and YAML structure input and run the example first when you want a known-good baseline. If your pasted data came from logs or docs, remove accidental wrappers before validating or converting.
How should I validate results from this OpenAPI validator?
Review the status message, compare output with expected behavior, and run one quick edge-case check. ByteBench helps with utility work, but production-critical output should still be verified in your project pipeline.