Sample WebM Files — Download VP9 Test Videos (480p, 720p, 1080p)
WebM (VP9 video, Opus audio) · .webm · MIME type video/webm
Download a sample WebM file encoded with VP9 video and Opus audio — the royalty-free combination Chrome, Firefox, Edge and Android play natively and YouTube serves by default. Sizes run from a 1 MB 480p clip to a 3 MB 1080p clip, all with the same timecode test pattern as our MP4 files.
WebM was launched by Google in 2010 as an open alternative to MP4. It is the natural output of browser MediaRecorder (screen and webcam recordings), so anything that accepts user recordings will see WebM uploads — often without an audio track or with a missing duration header, which is worth testing separately.
Download sample WebM files
| File | Details | Size | Download |
|---|---|---|---|
sample-video-480x270-1mb.webm | 480 × 270 · 10 s · 30 fps · VP9 · OPUS audio · 855 kbps | 1.1 MB | |
sample-video-1280x720-2mb.webm | 1280 × 720 · 10 s · 30 fps · VP9 · OPUS audio · 3238 kbps | 4.1 MB | |
sample-video-1920x1080-2mb.webm | 1920 × 1080 · 10 s · 30 fps · VP9 · OPUS audio · 5328 kbps | 6.7 MB |
Use these files from the command line or CI
Every URL is stable and CORS-open. Pin the SHA-256 in your test and you will know the moment a fixture changes.
# Download one file curl -O https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/videos/webm/sample-video-480x270-1mb.webm # Verify it (SHA-256 is listed for every file above) shasum -a 256 sample-video-480x270-1mb.webm # Machine-readable index of every sample file curl https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/index.json | jq '.files[] | select(.format=="webm")'
WebM format at a glance
| Full name | WebM (VP9 video, Opus audio) |
|---|---|
| Extensions | .webm |
| MIME type | video/webm |
| Introduced | Google / WebM Project, 2010 |
| Container | Matroska subset |
| Video codec | VP9 (VP8 and AV1 also allowed) |
| Audio codec | Opus 64 kbps (Vorbis also allowed) |
| Safari support | Since Safari 14.1 (VP8/VP9 on macOS Big Sur+) |
| Magic bytes | 1A 45 DF A3 (EBML) |
What people test with sample WebM files
- Chrome/Firefox playback with a smaller second <source>
- MediaRecorder upload handling
- Transcoding WebM to MP4 for iOS compatibility
- Open-source video stacks (WebRTC, Jitsi, PeerTube)
Frequently asked questions
Does WebM play on iPhone?
Partially. iOS 15+ Safari plays VP8/VP9 WebM in most cases, but hardware support varies and some apps' embedded web views do not. The safe rule is still: MP4 (H.264) first, WebM as an optional smaller source.
Are these WebM files safe to download?
Yes. Every file is generated by our own open script from scratch — nothing is scraped or user-uploaded — and contains no scripts, macros or executables. The SHA-256 of each file is published on this page so you can verify what you received.
Can I use the sample WebM files commercially?
Yes. They are free for any purpose, including commercial products, test suites, demos and redistribution, with no attribution required. There is nothing to license and no one to ask.
Can I hotlink these files or use them in CI?
Yes. Every link is a stable direct URL over HTTPS with Access-Control-Allow-Origin: * and long cache headers, so curl, wget, fetch() and test runners can pull them directly. A JSON index of every file is linked from each page (see the command-line section).
Related sample files
Testing a file pipeline? We build them.
Uploads, conversions, previews, document processing and media workflows are the kind of production systems Pine & Birch designs and runs for clients — which is why we needed these files in the first place.
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