OpenAPI / Swagger Validator & Explorer
Options
Endpoints
| Method | Path | Summary | Tags | Responses |
|---|---|---|---|---|
| Endpoints will appear here after validation. | ||||
What is an OpenAPI / Swagger Validator & Explorer?
An OpenAPI / Swagger Validator & Explorer checks an API specification written in YAML or JSON and turns it into a readable endpoint overview.
It helps developers review API contracts, spot missing responses or metadata, inspect schemas, and share a compact summary of available operations.
How to use the OpenAPI / Swagger Validator & Explorer
- Paste an OpenAPI or Swagger document into the editor.
- Click Validate spec to parse the YAML or JSON.
- Review errors, warnings, endpoint count, schemas, servers, and security schemes.
- Filter the endpoint table or copy the generated summary.
Related guides
Learn the workflow behind this tool and what to check next.
How to debug JSON API payloads
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How to debug API JSON responses
Format the response, confirm the HTTP status, validate the schema, and compare payload changes before changing application code.
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A CSV cleanup workflow for reviewing imported data, deduplicating rows, filtering records, and extracting the columns that matter.
OpenAPI checks before publishing or generating clients
Validate both document structure and API meaning before a specification drives documentation, tests, gateways, or generated SDKs.
Operations and responses
Confirm every path and method has stable operation IDs, parameters, request bodies, success responses, and documented error responses.
Schema reuse
Resolve references, required properties, nullable values, enums, formats, and composition rules without circular or ambiguous models.
Security requirements
Check schemes, scopes, global requirements, per-operation overrides, and intentionally public endpoints against actual server behavior.
Generator compatibility
Run the intended documentation or client generator because tools support different subsets and interpretations of the OpenAPI specification.
Privacy and usage
Built for quick checks without an account
Toolinix tools are designed for short developer tasks: paste a safe sample, inspect the result, copy what you need, and move on.
No login required
You can use the tools without creating an account, subscribing to a newsletter, or saving a workspace.
Local when possible
Formatters, generators, encoders, and text utilities generally run in your browser. Network diagnostics may need a server-assisted lookup to check public URLs, domains, or IPs.
Keep secrets out
Do not paste production passwords, private keys, access tokens, customer records, or regulated data into online tools unless your own security policy allows it.
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