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OpenAPI / Swagger to Markdown Converter
Convert OpenAPI and Swagger specification files (.yaml or .json) to clean readable Markdown. Perfect for feeding API documentation into Claude Code, Cursor, or ChatGPT for analysis, code generation, and integration planning.
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Convert multiple files at once — download individually or as a ZIP
Files processed in memory · deleted immediately · never stored or shared
Quick Answer
To convert an OpenAPI spec to Markdown, upload your .yaml or .json specification file below. inktomd formats all endpoints, parameters, request bodies, and response schemas as clean structured Markdown — ready for AI-assisted API integration.
Frequently asked questions
Does it work with both OpenAPI 3.0 and Swagger 2.0 formats?
Yes, both specifications are widely supported.
Does it preserve all endpoint parameters and response schemas?
Yes, parameters, request bodies, and schemas are cleanly rendered.
Can I convert API specs directly from a URL?
Currently you must download the spec and upload the file.
What happens to $ref references in the spec?
Local references are generally rendered as text, though full resolution depends on the file's self-containment.
Can I use this with Claude Code for API integration?
Yes, this produces excellent Markdown for Claude Code and Cursor.
Does it support both JSON and YAML OpenAPI specs?
Yes, you can upload your OpenAPI specification in either JSON or YAML format.
Which OpenAPI versions are supported?
The converter supports OpenAPI 2.0 (Swagger), 3.0, and 3.1 specifications.
How are endpoints formatted?
Endpoints are formatted as clear Markdown sections with HTTP methods, paths, parameters, and response schemas neatly organized.
Are schema definitions included?
Yes, component schemas and data models are converted into readable Markdown representations.
Will my API spec be stored?
Never. Your API documentation is processed in-memory and permanently deleted immediately.
Can I convert an OpenAPI URL?
Currently, you need to download the spec as a file (.json or .yaml) and upload it to the converter.
Why convert OpenAPI to Markdown?
Feeding raw JSON/YAML OpenAPI specs to an AI wastes tokens on structural syntax. Markdown provides a human-and-AI-readable format that improves the accuracy of AI-generated code.
Need a different format?
We support 28 formats.