YAML to JSON Converter
Turn YAML config files into clean JSON. Supports nested objects, lists, numbers and booleans, all converted locally in your browser.
Paste your YAML below:
Result:
How to convert YAML to JSON
- Paste your YAML text into the input box.
- Pick an indentation style: 2 spaces, 4 spaces or a tab.
- Click Convert to JSON and review the output.
- Copy the JSON or download it as a .json file.
FAQs
Is my YAML uploaded to a server?
No. The conversion runs entirely in your browser using the js-yaml library, so your data never leaves your device.
Which YAML features are supported?
Nested objects, lists, numbers, booleans, null values, quoted strings and multi-line strings. Anchors and custom tags are resolved where possible.
What happens if my YAML has an error?
The converter shows a clear error message with the line information, so you can fix the indentation or syntax mistake quickly.
Is the tool free to use?
Yes. Every Handio tool is free, with no sign-up, no limits and no watermarks.
Related Tools
Why convert YAML to JSON?
YAML is great for humans, but JSON is the format most APIs and JavaScript applications consume natively. Converting between them lets you reuse configuration data without rewriting it by hand.
- Feed a Docker Compose or Kubernetes config into a JSON-based tool.
- Pass a YAML settings file to an API that only accepts JSON.
- Share configuration with teammates who work in JSON.
Tips and Limits
YAML is a superset of JSON, so any valid JSON will also convert cleanly. Multi-document YAML and some advanced anchor features may not round-trip perfectly. Everything runs locally, so your data never leaves the browser.