Video format
WEBM Sample Files
WebM (.webm) is an open-source media container based on Matroska that uses VP8/VP9 video and Vorbis/Opus audio. Optimized for HTML5 video, it supports streaming. Use sample .webm files to verify browser compatibility, transparency tracks, and codec support.
7 files
All to 2MB
SHA256 verified
Manifest included
Quick facts
Files first
Start with one representative file.
Use cases
Pick the next task, not just the next file.
Compare and decide
Keep the next decision one step away.
MP4 vs WebM
Open ComparisonFAQ and reference
Keep the operational details quiet.
Checksum Verification
Use checksums to confirm file integrity after download.
shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.Where is the machine-readable manifest?
Use the manifest when you need stable names, SHA256 values, and URLs for automation.
Validation Methodology
- Confirm codec/container detection matches actual stream info.
- Test keyframe seek, subtitle loading, and fallback playback.
- Measure startup and buffering behavior across browsers.
Workflow Packs