Data Validation Rules Builder

Overview

Comprehensive tool for defining, testing, and managing data validation rules. Create complex validation logic including range checks, regex patterns, uniqueness constraints, type validation, and custom JavaScript expressions. Test rules against CSV data and export validation results with detailed error messages.

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Tips

• Start with simple rules (Not Null, Data Type) before adding complex validations
• Use the custom function rule type for complex business logic
• Save rule sets as templates for reuse across similar datasets
• Export rules as JSON to share with your team or use in automated pipelines
• Test incrementally - add one rule at a time to isolate validation issues
• Use the whitelist/blacklist rules for categorical data with known valid values