Toolinium
API Documentation Generator
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About API Docs Generator
API Docs Generator helps developers create clean, structured documentation for REST API endpoints without writing HTML by hand. Add an endpoint, pick its HTTP method, describe what it does, and paste a sample JSON response — your documentation builds itself instantly on the right. It's a fast way to document internal APIs, share endpoint specs with a team, or draft docs before writing a full OpenAPI schema.
How To Use
- Enter the endpoint path, e.g. /users
- Select the HTTP method: GET, POST, PUT or DELETE
- Write a short description of what the endpoint does
- Paste a sample JSON response in the response field
- Click Add to generate the documentation block instantly
- Repeat for each endpoint, then copy the full docs to your README or wiki
Frequently Asked Questions
Is this tool free?
Yes, API Docs Generator is 100% free with no registration required.
Is my data stored anywhere?
No. Everything runs locally in your browser — nothing is uploaded to a server.
Can I edit an endpoint after adding it?
Each entry is added as a new block. Click Clear and re-add your endpoints if you need to make corrections.
Does it generate an OpenAPI/Swagger file?
No, it produces readable HTML documentation blocks rather than a formal OpenAPI/Swagger schema.