Files for Browser Testing
A set of sample files for testing browser-based file handling. Covers file download triggers, drag-and-drop upload zones, the File API, Blob handling, media playback, and PDF rendering across Chrome, Firefox, Safari, and Edge. Includes files that trigger different browser behaviors for Content-Disposition, MIME sniffing, and cross-origin resource sharing.
Download Testing
Files for testing browser download behavior and Content-Disposition headers.
Drag & Drop Upload
Files of various types and sizes for testing drag-and-drop zones.
Media Playback
Audio and video files for testing HTML5 media elements.
Security Testing
Files for testing MIME sniffing and content-type handling.
Recommended Tools
Format Guides
Frequently Asked Questions
Which browsers should I test?
At minimum: Chrome (latest), Firefox (latest), Safari (latest), and Edge (latest). For wider coverage, add Safari on iOS and Chrome on Android.
How do I test MIME sniffing?
Serve our wrong-MIME-type file with different Content-Type headers and check if browsers respect X-Content-Type-Options: nosniff.