JSON Formatter & Validator

Paste JSON to validate, pretty-print, and inspect structural errors.

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    About this YAML ⇄ JSON converter

    Paste YAML to convert it to JSON, or paste JSON to convert it to YAML — direction is auto-detected. The converter handles nested maps, lists, strings, numbers, and booleans, covering the YAML most config files and API responses actually use.

    Note: this is a lightweight converter built for everyday config files. Advanced YAML features like anchors, aliases, and multiline block scalars aren't supported — for those, a YAML linter on your config file is a safer bet.

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