OpenAPI GUI Editor is a plugin for IntelliJ-based IDEs that provides a graphical interface for creating and editing OpenAPI specifications. It is intended for developers designing and maintaining API definitions within their development environment.
In the API design, testing & docs space, OpenAPI GUI Editor takes a focused approach. It focuses on editing and maintaining OpenAPI specifications without relying solely on raw YAML or JSON. It is built as a B2B product for developers using IntelliJ-based IDEs. OpenAPI GUI Editor is free to use. It ships for the web, macOS, Windows, and Linux.
Behind OpenAPI GUI Editor is JetBrains Marketplace, and it first shipped in 2026. Key capabilities include visual editing, openAPI support, and specification editing.
Summary written by a language model from the project’s public pages.
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