YAML to JSON Converter

Convert YAML to JSON instantly — handles nested maps, lists and scalars, all in your browser.

YAML:

JSON appears here…

How to use

Paste YAML, hit Convert, and get pretty-printed JSON with error messages if it fails.

What YAML features work?

Nested maps by indentation, lists with dashes, quoted strings, numbers, booleans and null.

Any limitations?

No anchors, multi-line blocks or complex types — standard simple YAML works great.

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Every tool runs 100% in your browser — no uploads, no signups. If a tool saved you time, consider supporting us with a small donation.