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OpenAPI / Swagger Spec Conversion

Convert OpenAPI 3.x or Swagger 2.0 API specifications between YAML and JSON. Both formats are valid and interchangeable.

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Output will appear here…

OpenAPI / Swagger tips

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The OpenAPI spec supports both YAML and JSON. YAML is preferred for hand-written specs (more readable); JSON is preferred for programmatic generation.

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Many code generators (e.g., openapi-generator-cli) accept both formats. Convert if your CI requires one specific format for consistency.

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Swagger Hub and SwaggerUI render both formats identically. Conversion is useful when sharing specs with teams that have different format preferences.

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Use the conversion to validate spec structure — YAML can hide schema issues that become obvious in JSON's explicit braces and quoted strings.

Como funciona

1
Entra
Enter your data into the tool above. Everything stays local to your browser.
2
Proceso
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Por que usar o noso?

Completamente gratuíto, sen custos ocultos, nunca
Non se precisa ningunha conta, correo electrónico ou inicio de sesión
Os ficheiros nunca saen do teu dispositivo
Non hai límites de tamaño de ficheiro
Non hai marcas de auga en ningunha saída

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