WebM

Open video format

WebM is a video file format designed for web use, offering efficient compression and playback without licensing fees.

It typically contains VP8 or VP9 video with Vorbis or Opus audio.

WebM files are widely supported by browsers and platforms: The site only accepts uploads in MP4 or WebM format.

format

container

Thing for storing items

subtitle · metadata · tags · chapters · multiplexing · media player · playback · embed · HTML5 · MKV

video

resolution

Formal decision or determination

VP9 · bitrate · quality · color space · interlacing · progressive · 4K · 1080p · 720p · animation

compression

codec

Data compression algorithm

lossy · lossless · algorithm · file size · optimization · quality · artifacts · bandwidth · efficiency · keyframe

web

browser

Web access program

  • HTML5Web content structuring language
  • FirefoxMozilla's web navigator
  • OperaSung dramatic theatrical form

cross-platform · embed · YouTube · Vimeo · fallback · compatibility · responsive · autoplay

streaming

buffering

Temporary data accumulation

  • CDNDistributed web delivery infrastructure
  • latencyDelay in system response
  • real-timeOccurring without processing delay

livestream · broadcast · YouTube · Twitch · transmission · bandwidth · embed · seeking · preload

Opposites
licensing model

WebMMP4

Multimedia container format

H.264 · MPEG-4 · QuickTime · AAC · MPEG

Phrases
Family

web, website, webpage, webcast, webmaster, WebP, WebGL

Familiarity
Top 1,000,000
Profile
Used worldwide · Rated G