Generate up to 100,000+ rows of realistic test data directly in your browser. Export to CSV, JSON, or SQL.
Did you know?
Generating massive datasets (like 100k+ rows) happens entirely in your browser memory. If you go super big, just make sure you have enough RAM free!
Max 1,000,000 rows
| Column Name | Data Type | |
|---|---|---|
Most online generators limit you to 100 or 1,000 rows. CodeCoffeeTools runs locally on your machine (using Web Workers), so we can generate 100,000+ rows instantly without freezing your browser.
Generate as much data as your computer's RAM can handle.
No data is sent to any server. Everything happens on your device.
Export directly to CSV (Excel), JSON (API Mocking), or SQL (Database Seeding).