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Mini tour
Paste or load the openapi input you want to work with.
Configure the few options that matter for your current debugging task.
Review the result, then copy, share, or continue iterating in the browser.
OpenAPI / Swagger Visualizer is a browser-based openapi / swagger visualizer built for developers, QA engineers, and DevOps teams who need quick results during debugging and release work.
It helps reduce context switching during api tools workflows by keeping formatting, validation, comparison, or conversion tasks inside a single lightweight browser experience.
OpenAPI / Swagger Visualizer is useful when you need a fast browser-based step inside an API, QA, or DevOps workflow without switching to a local script or desktop utility.
Teams typically use this api tools workflow during payload debugging, CI checks, incident triage, configuration review, and regression validation.
Import Postman collections, run requests locally, and export them as curl commands.
OpenGenerate deterministic happy-path, auth, boundary, and validation cases from OpenAPI specs.
OpenRun GraphQL queries with variables, headers, schema introspection, and local history.
OpenTransforms OpenAPI or Swagger files into a browsable endpoint catalog grouped by tags and resources.
Accepted input
Accepts raw YAML or JSON specs, or uploaded .yaml/.json files. Parsing is done locally and the formatted JSON export never leaves the browser.
How to use
Tips
OpenAPI specs define the contract between clients and services. This visualizer helps QA and API engineers inspect endpoints and validate spec completeness.
Endpoints are grouped by tags, making it easy to focus on a specific resource area or microservice domain.
All parsing happens locally in the browser, so sensitive specs never leave your machine.