MakeMyStats

Tools / JSON ↔ YAML Converter

JSON ↔ YAML Converter

Bidirectional live conversion between JSON and YAML. Edit either side and the other updates automatically.

Runs entirely in your browser
JSON
YAML

How to use JSON ↔ YAML Converter

  1. Paste either format

    Paste JSON on the left or YAML on the right. Both panes update each other live.

  2. Watch for parse errors

    Errors are shown inline above the relevant pane with line and column where possible.

  3. Download or copy

    Use the download buttons to save .json or .yaml, or copy from either pane.

Frequently asked questions

Does this tool upload my data?
No. Every parse, transform, and download runs entirely in your browser using JavaScript and Web Workers. The file never leaves your device — there is no upload endpoint and no server-side processing.
Which YAML version does it support?
It uses js-yaml's default schema (YAML 1.2 with the safe load). Anchors, aliases, and standard scalar tags work; custom tags do not.
Why does my YAML date convert to a string?
JSON has no native date type, so YAML timestamps are converted to ISO 8601 strings on the JSON side and re-parsed back to strings on the YAML side.
JSON Formatter

Format, minify, or validate JSON with configurable indentation and error reporting.

JSON ↔ XML

Bidirectional live conversion between JSON and XML.

JSON Viewer

Explore JSON as an interactive tree with expand/collapse, path display, and search.