Paste or type YAML on the left and Reformatr writes the equivalent JSON on the right as you type. Input is validated, errors are reported inline, and the whole conversion happens locally in your browser - your data is never sent to a server.

How YAML to JSON conversion works

• Paste, type or drop YAML into the input pane.
• JSON is produced as you type, with syntax errors reported inline.
• Copy the JSON output, or download it as a file.
• Everything runs in your browser - your data never leaves the page.

Going the other way? Use the JSON to YAML converter.

All converters

• Length
• Mass
• Temperature
• Time
• Volume
• Area
• Speed
• Pressure
• Energy
• Power
• Angles
• Timezones
• Number Bases
• Data Size
• Network Speed
• Frequency
• Fuel Consumption
• Fuel Usage
• Incline
• Coordinates

• JSON to CSV
• CSV to JSON
• JSON to XML
• XML to JSON
• JSON to YAML
• YAML to JSON
• CSV to XML
• XML to CSV
• CSV to YAML
• YAML to CSV
• XML to YAML
• YAML to XML