Yaml Workbox
Templates

OpenAPI Preview

Paste an OpenAPI 3 or Swagger 2 document (YAML or JSON). Swagger UI renders locally from the in-memory spec — nothing is uploaded.

All processing on this page runs locally in your browser unless noted otherwise.

Try it out sends requests from your browser to servers listed in the spec — not through Yaml Workbox. Keep it off unless you intend to call those APIs.

Loading Swagger UI…

How to use

  1. Paste OpenAPI YAML/JSON or load an OpenAPI template.
  2. Click Preview (or enable live convert with debounce).
  3. Browse paths below. Turn on Try it out only if you want live HTTP calls.

FAQ

Is my spec uploaded?

No. The document is parsed in the browser and passed to Swagger UI via the in-memory spec option — no remote fetch of your text.

What versions are supported?

OpenAPI 3.x and Swagger 2.0. The root must include openapi or swagger.

Why is Try it out off by default?

To avoid accidental calls to production APIs listed under servers. Enable it intentionally when you need to exercise endpoints.

Related tools

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