Mermade/openapi-gui

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1494 stars · 170 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

OpenAPI-GUI is a browser-based visual editor for creating and editing OpenAPI 3.0.x (and Swagger 2.0, auto-converted) JSON/YAML definitions. It runs entirely client-side with forms for editing paths, operations, and parameters, and can be self-hosted or served via an embedded Node.js web server.

Use cases

• visually edit an OpenAPI 3.0 definition
• convert a Swagger 2.0 spec to OpenAPI 3.0
• bootstrap a new API spec without writing YAML by hand
• edit OpenAPI definitions in the browser
• import an existing OpenAPI definition from a URL and tweak it
• export edited API definitions as JSON or YAML

When to choose

• you want a lightweight, no-install visual editor for simple OpenAPI definitions
• you need to convert Swagger 2.0 specs to OpenAPI 3.0 with a GUI
• you prefer a fully client-side tool with no backend or data leaving your browser

When to avoid

• you need to manage large or complex OpenAPI definitions with advanced features
• you require multi-file or team-collaborative spec editing
• you need an actively developed tool with frequent updates

Facets

application · maturity maintenance

gui editor api-framework http-server cli developer-tools apis web-development documentation browser cli openapi swagger visual-editor api-design client-side vuejs yaml json web-server nodejs docker

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markdown · JSON · MCP: product_card(name="Mermade/openapi-gui")