Validate your structured data with confidence.

  • Create Validation Rules using the Format Rule Builder

  • Upload Validation Rules and File Data

  • Receive Validation Feedback via API

Format Guard is a powerful API service that validates structured delimited and fixed file data content against custom validation rules.

Custom Rule Engine

Supports custom validation rules with built in validation types including regular expressions and conditional expressions.

Format Rule Builder

Easily create rules using the proprietary Format Rule Builder.

Flexible File Support

Works with delimited and fixed-width formats without extra setup.

REST API Integration

API-first for seamless integration into your data pipeline.

Comprehensive Validation Results

Returns structured validation results including row-level and field-level detail.

Documentation and Tutorials

Comprehensive custom rule tutorials and documentation to get up and running in minutes.

How it Works

  • Sign up to get your free one month trial API key and documentation access
  • Define your validation rules using the proprietary Format Rule Builder
  • Submit your data with the validation rule schema via API
  • Receive structured results with validation errors

Benefits

Clean Data

Cleaner data from the start.

Custom Validation Rules

Custom validation tailored to your use case.

Built-in Validation

Comprehensive built-in column validation type options.

REST API Integration

Developer-friendly API for seamless integration into your data pipeline.

Comprehensive Validation Results

Returns structured validation results including row-level and field-level detail.

Perfect For

  • Data engineers working with flat files in ETL and ELT pipelines
  • QA and compliance teams validating datasets
  • SaaS applications accepting user-uploaded structured data
  • Any team that needs to validate raw data before ingestion