Video format

WEBM-Beispieldateien

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 dateien All to 2MB SHA256 verified Manifest included

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Quick facts

KategorieVideo

Total Files7

Extension.webm

MIMEvideo/webm

Opens withChrome/Firefox, VLC

ManifestJSON

Verwandte Abdeckung anfragen

Files first

WEBM Sample Files — Download

Starter file

webm_15s_sample_file_455KB.webm · 454.7 KB

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VP9 + Opus WEBM

Browser-first WebM fixture with audio and video for playback validation.

webm_vp9_opus_360p_sample.webm · 89.8 KB

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Video-Only WEBM

No-audio WebM fixture for player fallback and track-handling checks.

webm_vp9_no_audio_240p_sample.webm · 16.7 KB

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All (7) 50KB (3) 200KB (1) 500KB (1) 1MB (1) 2MB (1)

50KB WEBM

Dateiname	Groesse	MIME	Herunterladen
webm_15s_sample_file_455KB.webm .webm Starter `SHA256 47d922e6b86e...`	454.7 KB	`video/webm`	Herunterladen
webm_30s_sample_file_911KB.webm .webm `SHA256 0a57868a74c3...`	910.8 KB	`video/webm`	Herunterladen
webm_5s_sample_file_152KB.webm .webm `SHA256 5b6351c88cf8...`	151.9 KB	`video/webm`	Herunterladen
webm_60s_sample_file_1.8MB.webm .8MB.webm `SHA256 69197cd02015...`	1.8 MB	`video/webm`	Herunterladen
webm_portrait_vp9_opus_sample.webm .webm Realistic `SHA256 847f389a70fe...`	84.3 KB	`video/webm`	Herunterladen
webm_vp9_no_audio_240p_sample.webm .webm Realistic `SHA256 7ba54d9a47dc...`	16.7 KB	`video/webm`	Herunterladen
webm_vp9_opus_360p_sample.webm .webm Realistic `SHA256 8cb3cf5fa08b...`	89.8 KB	`video/webm`	Herunterladen

Use cases

WEBM Testing Workflows

Upload Testing

WEBM for Upload Testing

Seite oeffnen WEBM

Parser Regression

WEBM for Parser Regression

Seite oeffnen WEBM

QA Automation

WEBM for QA Automation

Seite oeffnen WEBM

MP4 MOV AVI

Compare and decide

WEBM Format Comparisons

MP4 vs WebM

Waehlen Sie den richtigen Web-Video-Container nach Kompatibilitaet und Kompression.

Open Comparison

Bestes Videoformat fuer Browser-Wiedergabe Bestes Format fuer Browser-Marketing-Video How to Convert MP4 to WEBM

More video formats: MPEG 3GP FLV M4V MKV OGV

FAQ and reference

WEBM File FAQ

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.

Manifest WebM Container Format

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-Pakete

Media Playback Fixture Pack

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