YAML to JSON Converter
Convert YAML into clean, standard JSON instantly
Paste a block of readable YAML config and get properly formatted, standards-compliant JSON back. Choose your indentation width (2 or 4 spaces), or output everything minified on a single line.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Paste the YAML you want to convert into the input box.
- Use the control at the top right to set the output indentation — 2 spaces, 4 spaces, or minified.
- Review the resulting JSON structure at a glance and copy it to your clipboard.
FAQ
- What happens if my YAML syntax is invalid?
- The YAML parser highlights the line number where the problem starts along with a clear error message, so you can spot and fix it right away.
- Does it also support YAML comments (#) and anchor (&) / alias (*) syntax?
- Comments (#) are automatically ignored during parsing and won't appear in the resulting JSON. Anchors (&) and aliases (*) for reusing values are supported too — when converting, each alias is expanded in place with the actual value its anchor points to.
- Does it also support YAML comments (#) and anchor (&) / alias (*) syntax?
- Comments (#) are automatically ignored during parsing and won't appear in the resulting JSON. Anchors (&) and aliases (*) for reusing values are supported too — when converting, each alias is expanded in place with the actual value its anchor points to.