YAML to JSON Converter
ConvertConvert YAML configuration into valid, formatted JSON in one click.
Convert YAML to JSON online
YAML is great to write by hand, but most APIs, tools, and libraries expect strict JSON. This converter parses YAML — including anchors, aliases, and multi-line strings — and produces clean, valid JSON you can feed straight into code or paste into another tool.
Because YAML is a superset of JSON, the conversion is faithful: the structure and values you wrote in YAML come through unchanged, just in JSON's stricter syntax.
Full YAML 1.2 support
Real YAML files use features that trip up naive converters. This one resolves anchors (&) and aliases (*) so the resulting JSON contains the fully expanded values, handles block and folded multi-line strings, and reports a clear error with context when the YAML cannot be parsed. Choose pretty-printed or minified JSON output depending on what you need next.
Convert a YAML config to JSON online
YAML is pleasant to write but most APIs and libraries want strict JSON. Paste a YAML config or drop a .yml file and get clean JSON back instantly, ready to feed into code, a request body, or another tool. Comments are dropped — JSON has none — anchors are expanded, and any parse error is reported with context so you can fix the source quickly.
Everything in the YAML to JSON Converter
Convert YAML to JSON instantly with full support for nested structures, lists, and anchors. Validate and beautify the output. Free, private, and in-browser.
Full YAML 1.2
Anchors, aliases, and multi-line strings supported.
Pretty or minified
Choose formatted or compact JSON output.
Error reporting
Clear messages when the YAML can't be parsed.
Copy & download
Export the JSON result instantly.
Frequently asked questions
Yes. The parser resolves anchors (&) and aliases (*) so the resulting JSON contains the fully expanded values.
Yes. Paste YAML text or drop a .yml/.yaml file and it's converted to JSON in your browser — nothing is uploaded. Choose pretty-printed or minified JSON output depending on what you need next.
JSON has no comments, so any YAML comments are dropped during conversion. Anchors (&) and aliases (*) are resolved, so the resulting JSON contains the fully expanded values rather than references.
No. Every operation runs entirely in your browser using client-side JavaScript. Your JSON is never uploaded, logged, or stored on any server — it never leaves your device.
Yes, completely free with no sign-up required. There are no usage limits, no watermarks, and no premium gate on any feature.
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