πŸš€ Version 2.9.1 - Batch Processing with Per-Config Split Settings!

Professional Test Data Generation

Create realistic datasets for AWS Athena, Redshift, and data analytics in seconds

41+
Field Types
100%
Browser-Based
∞
Rows Generated
Free
Forever

Powerful Features for Data Engineers

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41+ Realistic Field Types

Names, emails, addresses, dates, UUIDs, phone numbers, credit cards, IP addresses, and more. Generate data that looks and behaves like production data.

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Direct S3 Upload

Upload generated CSV files directly to Amazon S3 with dynamic path templating. Perfect for feeding your data lake or testing ETL pipelines.

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Deterministic IDs

Generate consistent IDs across datasets for testing SQL JOINs and relational data structures. Build complex multi-table test scenarios.

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Configuration Presets

Save and load field configurations as JSON presets. Share schemas with your team or maintain consistent test data structures.

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Multi-Column Sorting

Sort by multiple columns with configurable order. Test query performance and validate sorting logic.

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Pagination & Preview

Preview large datasets with efficient pagination. Generate millions of rows without browser performance issues.

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Auto-Save Configurations

Automatically saves loaded configurations. Never lose your schema definitions or have to reconfigure field settings.

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Custom Value Ranges

Configure min/max values, date ranges, decimal precision, and more. Fine-tune your test data to match real-world constraints.

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Parquet Import & Export

Import and export Apache Parquet format for optimized columnar storage and faster Athena/Redshift queries. Full round-trip support.

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Batch Processing

Automatically process all saved configurations in sequence. One-click upload of multiple datasets to S3 with optional review before each upload.

Perfect For AWS Analytics

Use Cases

πŸ§ͺ ETL Testing

Generate test data for validating ETL pipelines and data transformations

πŸ“Š Query Performance

Create large datasets to test Athena and Redshift query optimization

πŸ” Data Discovery

Populate AWS Glue catalogs for testing data discovery workflows

πŸŽ“ Training & Demos

Create realistic demo data for presentations and training sessions

πŸ› οΈ Development

Build prototype applications without production data exposure

πŸ” Security Testing

Test access controls and data masking without real PII

Quick Start

  1. Open the generator - No installation required, runs entirely in your browser
  2. Add fields - Choose from 41+ data types and configure options
  3. Generate data - Specify row count and click generate
  4. Download or upload - Save as CSV or upload directly to S3
Get Started Now

πŸ€– Built in 4 Days with AI + 20 Years Experience

CSV Generator Pro was created using Claude.ai in just 4 daysβ€”combining AI-assisted development with decades of real-world data engineering experience. It's a testament to what experienced developers can build when AI amplifies their expertise.

Read the full story β†’

License & Documentation

πŸ“œ MIT License - Free to Use

CSV Generator Pro is released under the MIT License, which means:

  • βœ… Free for personal and commercial use
  • βœ… Modify and distribute as you wish
  • βœ… No attribution required (but appreciated!)
  • βœ… No warranty or liability

View Full License | Read Documentation