API & Developer Testing Tools
OpenAPI to YAML Converter
Paste an OpenAPI document in JSON (or YAML) and get it converted to clean, formatted YAML.
Paste an OpenAPI document in JSON below to convert it to clean, formatted YAML.
Conversion happens entirely in your browser - your document is never sent to a server.
What Does This Tool Do?
This tool takes an OpenAPI document written in JSON and converts it to YAML, which many teams prefer for its more compact, readable format and easier diffs in version control.
Why Use This Tool?
Useful when migrating an OpenAPI file from JSON to YAML for a documentation tool, or simply to make a machine-generated JSON specification easier for a human to review.
How to Use the OpenAPI to YAML Converter
- Paste your OpenAPI document in JSON.
- Click Convert to see the formatted YAML output.
- Copy the result.
Related Tools
Need to go the other direction? Use the OpenAPI to JSON Converter. To check the document's structure first, use the OpenAPI/Swagger Validator.
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