YAML to JSON

Convert YAML to JSON

The YAML to JSON converter parses YAML configuration and produces equivalent JSON, letting you feed human-friendly config into tools, APIs, and code that expect JSON. It also doubles as a quick validity check: if your YAML has an indentation mistake or a stray character, parsing fails and you know the file needs fixing.

How it works

Parsing runs locally in your browser. Your YAML is read and converted to JSON on your own device — mappings become objects, sequences become arrays, and scalars keep their types — with no upload. Because it is client-side JavaScript, conversion is instant and works offline once loaded.

How to use it

• Convert a CI or Compose file to JSON for a script or API.
• Validate that a YAML config parses cleanly.
• Inspect deeply nested YAML as structured JSON.
• Bridge tools that speak JSON with configs written in YAML.

Reverse the process anytime with JSON to YAML. Once you have JSON, the JSON Formatter makes it readable and the JSON to TypeScript tool can generate types from it.

Private by design

Your YAML is processed entirely in the browser, so configuration secrets never leave your machine. No sign-up, no server, no tracking of your data.