YAML Tools

Open API YAML Viewer

Open API YAML Viewer — view OpenAPI YAML: version, servers, paths, and schemas. It runs in your browser; nothing is uploaded and there is no sign-up.

Client-sideRuns entirely in your browser — your data never leaves your device.

OpenAPI™ is a trademark of the Linux Foundation (OpenAPI Initiative). This independent browser tool is not affiliated with or endorsed by the initiative, and trademarks belong to their respective owners.

OpenAPI YAML
API overview

How to use Open API YAML Viewer

  1. Start by adding the YAML you want to process into Open API YAML Viewer.
  2. Open API YAML Viewer updates the output automatically as you type.
  3. Use Copy to keep or reuse the result.

About this tool

Open API YAML Viewer is a static, client-side tool with no backend. Open API YAML Viewer reads your YAML on your device and returns the result instantly.

Nothing about your file is uploaded. Your input never leaves the page, and no account or install is required.

Frequently asked questions

What is Open API YAML Viewer for?

Use Open API YAML Viewer to process your input without installing anything; everything happens client-side.

Does Open API YAML Viewer cost anything?

No — Open API YAML Viewer is completely free, with no sign-up and no hidden limits.

Does Open API YAML Viewer upload my data?

No — Open API YAML Viewer processes everything locally in your browser, so nothing you enter is uploaded or stored.

How does Open API YAML Viewer handle YAML indentation errors?

Open API YAML Viewer reports the problem inline so you can fix the indentation, all within your browser.

Does Open API YAML Viewer work on mobile?

Yes — Open API YAML Viewer is just a web page and runs on any modern browser, including phones and tablets.

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