Files for Upload Testing
A curated collection of sample files designed specifically for testing file upload functionality. Whether you are building a drag-and-drop uploader, a multi-file form, or a server-side upload handler, these files help you validate size limits, file type restrictions, MIME type detection, progress indicators, and error handling. Covers common formats from tiny 1KB files to large 100MB+ files.
Small Files (Under 100KB)
Test basic upload functionality, quick validation, and UI responsiveness with small files.
Medium Files (100KB–5MB)
Test progress indicators, chunked uploads, and typical user upload scenarios.
Large Files (10MB+)
Test upload timeouts, chunked transfer, resume capability, and server limits.
Edge Cases
Test error handling with invalid, empty, and mismatched files.
Recommended Tools
Format Guides
Frequently Asked Questions
What file sizes should I test uploads with?
Test with at least 3 tiers: small (<100KB) for quick validation, medium (1–5MB) for progress indicators, and large (50MB+) for timeout and chunked upload handling.
How do I test file type validation?
Upload files with wrong extensions (see our MIME type mismatch files), empty files, and files slightly above your size limit to verify both client-side and server-side validation.
Should I test with invalid files?
Yes. Upload corrupt files, zero-byte files, and files with wrong MIME types to ensure your error handling returns useful messages and doesn't crash.