OpenAPI Editor and Visualizer

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Free browser-based OpenAPI editor from Postman. Design or import a Swagger 2.0, OpenAPI 3.0, or OpenAPI 3.1 spec (YAML or JSON) and see live documentation with inline validation as you type. No signup, no install. Part of Postman's suite of free developer tools at postman.

Cost / License

Free
Proprietary

Origin

United States

Platforms

Online

Error state

Options/import menu

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Diana Dobra added OpenAPI Editor and Visualizer as alternative to Cortex Docs
about 1 month ago
Mauricio B. Holguin added OpenAPI Editor and Visualizer as alternative to Stoplight, Apidog, ReadMe, Insomnia REST Client and 15 more
about 2 months ago
Aarthi Shankar added OpenAPI Editor and Visualizer
about 2 months ago
Aarthi Shankar added OpenAPI Editor and Visualizer as alternative to swagger.io
about 2 months ago

OpenAPI Editor and Visualizer information

Developed by
Postman, Inc.
Licensing
Proprietary and Free product.
Alternatives
21 alternatives listed
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Supported Languages
- English

AlternativeTo Category

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OpenAPI Editor and Visualizer was added to AlternativeTo by Aarthi Shankar on Sep 5, 2026 and this page was last updated Sep 5, 2026.

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What is OpenAPI Editor and Visualizer?

Free browser-based OpenAPI editor from Postman. Design or import a Swagger 2.0, OpenAPI 3.0, or OpenAPI 3.1 spec (YAML or JSON) and see live documentation with inline validation as you type. No signup, no install. Part of Postman's suite of free developer tools at postman.com/tools.