Continuous tabular data validation

Goodtables increases your confidence in your data by performing a number of checks on it. It is able to validate things like:

  • Is my CSV valid?
  • Do all rows have the same number of columns?
  • Are all dates valid?
  • Is there any invalid e-mail?

If any of the checks fail, goodtables generates a report telling you which and where the errors occurred.

_images/failed_validation.pngExample report with failed validation

By adding goodtables to your data publishing workflow, you’ll make sure your data is free from these types of errors.


  • Structural checks: Ensure that there are no empty rows, no blank headers, etc.
  • Content checks: Ensure that the values have the correct types (“string”, “number”, “date”, etc.), that their format is valid (“string must be an e-mail”), and that they respect the constraints (“age must be a number greater than 18”).
  • Support for multiple tabular formats: CSV, Excel, LibreOffice, Data Package, etc.
  • Automatically validate data on every update: Support for data on GitHub and Amazon S3.