Random File Generator - Free Online Tool | PivaBox

Generate random test files in TXT, CSV, JSON, or binary format

How to Use Random File Generator

1. Select the file type — TXT, CSV, JSON, or Binary
2. Choose the file size from presets or enter a custom size
3. Set the number of files you want to generate (1-20)
4. Click Generate and download your files individually

Frequently Asked Questions

Where are the files generated?

All files are generated entirely in your browser using the Blob API. No data is uploaded to any server. Files are created in memory and downloaded directly to your device.

What can I use random test files for?

Random test files are useful for testing upload functionality, load testing applications, validating file size limits, testing download speeds, or creating sample data for demonstrations.

How large can the files be?

You can choose from presets (1KB to 10MB) or enter a custom size. Binary files use cryptographically secure random data via crypto.getRandomValues.