YAML to JSON Converter
Convert YAML data to JSON format instantly. Paste your YAML on the left and get pretty-printed JSON on the right. Errors are shown inline — no popups. Your data never leaves your device.
Loading YAML library...
Output will appear here
Frequently Asked Questions
- Is this YAML to JSON converter free?
- Yes, 100% free. No account, no limits, and nothing is uploaded — the conversion runs entirely in your browser.
- What YAML features are supported?
- The tool uses the js-yaml library which supports YAML 1.2, including anchors, aliases, multi-line strings, nested objects, and arrays.
- Why is my YAML showing an error?
- YAML is whitespace-sensitive. Make sure you are using spaces (not tabs) for indentation and that your colons are followed by a space. The error message in the output panel will pinpoint the issue.
- Are my files safe?
- All processing runs locally in your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes, it works on all modern browsers including mobile Safari and Chrome on iOS and Android.