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ConvenTools

YAML to JSON Converter

Runs in your browser — your files never leave your device

Paste YAML and get pretty-printed JSON — entirely in your browser. Useful for feeding a config into an API or a JSON-only tool. Your data is never uploaded.

How to use it

  1. 1
    Paste YAML

    Paste your YAML into the input box.

  2. 2
    Convert

    Click Convert to JSON.

  3. 3
    Copy

    Copy the JSON output.

From config to API-ready JSON

YAML config files are readable, but many tools and APIs want JSON. This converter parses your YAML — including nested maps and lists — and emits clean, indented JSON you can drop straight into code.

Frequently asked questions

Is my data uploaded anywhere?

No. The conversion runs entirely in your browser; nothing is sent to a server.

What if my YAML is invalid?

You will get a clear error describing the problem so you can fix it.

Can I convert the other way?

Yes — use the JSON to YAML tool for the reverse direction.

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