Free browser-generated test files

Sample files for testing and development

Download realistic sample files in the formats developers actually need. Every file is generated directly in your browser — no server, no upload, no login. Use them to test parsers, seed databases, validate upload handlers, and build without waiting for real data.

The formats developers reach for most often — each page includes multiple dataset types, size variants, and a custom generator so you can configure exactly what you need.

All sample file types

Every available format grouped by category. Each page generates files entirely in your browser with no login required.

All files are generated locally in your browser. Nothing is uploaded to a server, no account is required, and no data leaves your machine. Every generator runs entirely on client-side JavaScript — the same file you download is the same file that was assembled in your tab.

Flipper File