YAML to JSON / JSON to YAML

Convert configuration data between YAML and JSON. It is fast, free, and designed for everyday development work.

Browser workspace
Your result will appear here.

🔒Private by design. Nothing is uploaded—this tool runs entirely in your browser.

How to use this tool

  1. Paste or type the content you want to process in the input area.
  2. Add the second input or options shown for this tool, when required.
  3. Select “Convert” to process everything locally in your browser.
  4. Check the result carefully, then use the copy button to save it.

How YAML to JSON / JSON to YAML works

YAML and JSON often describe the same configuration data with different syntax. YAML favors readability and comments, while JSON is stricter and commonly used by APIs and programming tools.

The converter first attempts to parse the input as JSON; valid JSON becomes YAML. Otherwise it parses YAML and serializes the resulting value as indented JSON, all through bundled browser-side libraries.

Comments and some YAML-specific features cannot survive a round trip through JSON. Review aliases, custom tags, dates, and implicit types carefully, and keep the original file if comments or exact formatting are important.

Frequently asked questions

What does YAML to JSON / JSON to YAML do?

Convert configuration data between YAML and JSON.

Is YAML to JSON / JSON to YAML free?

Yes. You can use the complete tool without an account, subscription, or usage limit.

Is my input uploaded anywhere?

No. The tool processes your input inside the current browser tab and does not send editor content to a Toolsvanta processing server.

Does it work on mobile?

Yes. The input, controls, and results adapt to smaller screens, although larger code or data samples are usually easier to inspect on desktop.

Can I use the result in a commercial project?

Yes. You may use the result in personal or commercial work. Always review and test important output before deploying it.

Does Toolsvanta save my work?

No. Input and results are not saved by the tool. Copy anything you want to keep before closing or refreshing the page.

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