Data format tools

Convert data without hiding representation changes.

Choose a check

Use the JSON and YAML converters to inspect duplicate keys, unsafe numbers and presentation loss. Use Unix Timestamp Converter to interpret epochs, units and time zones. These conversions run in your browser; verify exported data in the system that consumes it.

Tools in this collection

• JY

  JSON to YAML Converter

  Runs in browser
  • Your data is JSON, but the next tool needs YAML.
  • Writing a Kubernetes or CI config? Start from your JSON.
  • Duplicate keys in the source? Find them before they vanish.
  • Strings like "no" or "0123"? See them quoted safely in YAML.
  • Need test fixtures in YAML? Convert as you type.

  Convert JSON to YAML live and refuse ambiguous or unsafe data.

• YJ

  YAML to JSON Converter

  Runs in browser
  • Need your YAML in a JSON-only app? See what survives the conversion.
  • App only reads JSON? Convert your YAML config.
  • Using anchors and aliases? See how they expand.
  • Values that change type in YAML? See what they become.
  • Unsafe tags in a file? Spot them before parsing elsewhere.

  Convert YAML to JSON live and expose lossy or unsafe constructs.

• UTC

  Unix Timestamp Converter

  Runs in browser
  • Make sense of a date in your logs, or test where date handling breaks.
  • Seconds or milliseconds? Identify a timestamp's unit.
  • Log in UTC, you in another zone? Convert both ways.
  • Testing date parsing? Break the input and see what fails.
  • Microsecond or nanosecond value? Convert it exactly.

  Convert exact timestamps, check time zones, and break or heal date inputs.