Toolvist

YAML to JSON Converter

Convert YAML to JSON online — paste your YAML and get valid JSON you can copy or download. Free converter that handles nested maps and lists.

Free Online YAML to JSON Converter

The YAML to JSON converter translates YAML into JSON for use in APIs and JavaScript. It supports the common YAML subset: nested mappings, sequences, and scalars (strings, numbers, booleans, null).

How to Use

Paste YAML and click Convert. The equivalent JSON appears on the right.

  • Handles indented maps and "- " sequences
  • Converts scalars (numbers, true/false, null) automatically
  • Best for config-style YAML

Supported Subset

Advanced YAML features (anchors, multi-line block scalars, complex flows) are not supported. For those, use a full parser like js-yaml in your build pipeline.

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