YAML to JSON Converter

Runs in your browser — your files are never uploaded.

Convert YAML config into formatted JSON. OkConverter parses your YAML — including nested structures, lists and scalars — and pretty-prints the result as JSON. Everything runs locally in your browser, so your data is never uploaded.

How to convert YAML to JSON

  1. 1

    Drop your .yaml or .yml file onto the box, or click to choose one.

  2. 2

    OkConverter parses the YAML and serializes it as indented JSON.

  3. 3

    Click "Download" to save your .json file.

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Frequently asked questions

Does it support full YAML?+

Yes. It handles the standard YAML types — mappings, sequences, strings, numbers, booleans and null — and converts them to the matching JSON values.

What if my YAML is invalid?+

You will get a clear error message instead of a broken file, so you can fix the syntax and try again.

Are my files uploaded?+

No. The conversion runs entirely in your browser on your device — your YAML is never uploaded.

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