Is my YAML or JSON uploaded anywhere?

No. The conversion happens in your browser with JavaScript — nothing is sent to a server, so it's safe for private configs and secrets.

Does it convert both directions?

Yes. Switch between YAML → JSON and JSON → YAML with one click. Both directions validate the input and report the first syntax error.

Why did I get a parsing error?

YAML is whitespace-sensitive — inconsistent indentation, tabs instead of spaces, or a missing colon are the usual causes. For JSON, watch for trailing commas and single quotes. The error message names what went wrong.

YAML to JSON

Convert YAML to JSON and JSON back to YAML.

JSON output

About YAML to JSON

A YAML to JSON converter turns YAML — the indentation-based format used for config files — into JSON, and converts JSON back to YAML. Paste your input, pick a direction, and get formatted output instantly, with a clear message pointing to any syntax error. It runs entirely in your browser, so private config never leaves your device.

Frequently asked questions

Is my YAML or JSON uploaded anywhere?: No. The conversion happens in your browser with JavaScript — nothing is sent to a server, so it's safe for private configs and secrets.
Does it convert both directions?: Yes. Switch between YAML → JSON and JSON → YAML with one click. Both directions validate the input and report the first syntax error.
Why did I get a parsing error?: YAML is whitespace-sensitive — inconsistent indentation, tabs instead of spaces, or a missing colon are the usual causes. For JSON, watch for trailing commas and single quotes. The error message names what went wrong.

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