OpenToolkit

YAML Editor

Developer

Format, validate and convert YAML to a live JSON preview.

Open YAML Editor →

How to use

  1. Paste YAML into the editor or upload a local YAML file.
  2. Choose Format to normalize it or Validate to check its syntax.
  3. Copy the YAML, or download the result as YAML or JSON.

Features

  • Local YAML file upload
  • Formatting and syntax validation
  • Live JSON preview
  • YAML and JSON downloads
🔒 Private by design — YAML Editor runs entirely in your browser. Your files and text never leave your device.