CSV Schema Validator

Validate a CSV against a schema – auto-fix what you can, review what you can't, reject what's unacceptable.

1
Load files
2
Define schema
3
Review violations

Upload data CSV

The file you want to validate

Upload schema

JSON or CSV schema file

↓ sample-schema.json  ·  sample-schema.csv
— or define your schema below —

Schema builder

Edit rules per column
Column Type Required Allowed values Min Max Max length Format On violation

Violations

Row Column Rule Value Action Resolution