Bulk CSV Generator

Developer

Generate large CSV datasets with custom columns and data types. Perfect for testing databases and data pipelines.

Columns

Settings

Preview (first 100 rows)
Quick Templates
What is This Tool?
A bulk CSV generator creates large CSV files with realistic fake data. Define column schemas (names, emails, dates, numbers, custom patterns) and generate thousands of rows for database seeding, load testing, data pipeline development, and spreadsheet testing.
CSV (Comma-Separated Values) is the universal tabular data format supported by Excel, Google Sheets, databases, and every data tool. This generator produces properly escaped CSV with quoted fields, handles commas in values, and supports custom delimiters.
Common Use Cases
Database Seeding
Generate large CSV files for bulk importing into PostgreSQL, MySQL, and other databases using COPY or LOAD DATA commands.
ETL Testing
Create test CSV data for validating extract-transform-load pipelines, data quality rules, and transformation logic.
Spreadsheet Testing
Generate CSV files with specific row counts and data types for testing Excel/Google Sheets formulas, pivot tables, and charts.
Load Testing
Create large datasets for performance testing data import APIs, file processing services, and batch job systems.
Frequently Asked Questions
How many rows can I generate?
Thousands of rows in the browser. For very large files (100K+), downloads are streamed to avoid memory issues.
Are special characters handled?
Yes. Fields containing commas, quotes, or newlines are automatically quoted. Embedded quotes are escaped as double quotes ("").
Can I use custom delimiters?
Yes. Besides comma, support tab (TSV), semicolon, pipe (|), and custom single-character delimiters.