YAML to JSON converter

Free YAML to JSON converter in your browser. Paste or drop a file — nothing is uploaded.

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Paste or drop .yaml, .yml

Nothing leaves this device. No account required.

Why convert YAML to JSON?

YAML configs are easy to edit but harder to validate in strict pipelines. JSON is what linters, schema validators, and many APIs consume. Convert when you need machine-readable output with explicit delimiters.

What changes in the output

  • YAML comments and anchors are dropped in JSON output
  • All values become JSON types (strings stay strings)
  • Output uses quoted keys and standard JSON punctuation
  • Multi-document YAML files are rejected

How to convert YAML to JSON

  1. Paste YAML or drop a yaml file onto the converter.
  2. Confirm From is YAML and To is JSON, then click Convert.
  3. Copy or download the JSON output — processing never left your browser.

FAQ

Is this YAML to JSON converter free?
Yes. Formatly converts YAML to JSON in the browser at no charge and without an account.
Do you upload my YAML files?
No. Parsing and conversion run locally in your browser. Files stay on this device.
Can I switch formats after converting?
Yes. Use the From and To selectors to try other pairs, or open a related converter from the links below.

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