YAML to JSON Converter

How it works

How to use the YAML to JSON

1. Paste or open YAML

   Paste your YAML, drop a file onto the editor, or load the sample.

2. Adjust the options

   Numbers and booleans are detected automatically, and the result is pretty-printed with your chosen indentation.

3. Copy or download the JSON

   The output updates as you type. Invalid input is highlighted with the exact line and column.

About YAML and JSON

YAML is a human-friendly superset of JSON that uses indentation instead of braces. It is the format of Kubernetes manifests, Docker Compose, GitHub Actions and most CI configs.

JSON (JavaScript Object Notation) is the standard format for web APIs and configuration: objects, arrays, strings, numbers, booleans and null.

How the conversion works

Numbers and booleans are detected automatically, and the result is pretty-printed with your chosen indentation. Conversion happens entirely in your browser, so even sensitive data never leaves your device.

Built for developers

Why developers use it

• Private by design

  Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.

• Instant results

  Output updates as you type, with precise error locations when something is wrong.

• Works offline

  Once loaded, the tool keeps working without a connection. Install it as an app if you like.

• Free, no sign-up

  No accounts, no limits, no watermarks.

FAQ

Frequently asked questions

Keep going

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