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Codec: avc1.420829

85.25% Encoder Support
53,765 of 63,067 sessions supported encoding
99.94% Decoder Support
11,926 of 11,933 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,067 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.71% 27,561 / 27,642 99.98% 4,309 / 4,310 — 99.7% 12,181 / 12,218 98.59% 1,536 / 1,558
SafariSafari
 — 2.46% 41 / 1,669 1.67% 118 / 7,054 — —
EdgeEdge
 99.98% 5,081 / 5,082 98.41% 62 / 63 — 100.0% 117 / 117 —
FirefoxFirefox
 95.11% 2,099 / 2,207 100.0% 309 / 309 — 0.0% 0 / 16 99.04% 311 / 314

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,933 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,246 / 5,248 100.0% 676 / 676 — 100.0% 2,249 / 2,249 99.22% 383 / 386
SafariSafari
 — 100.0% 252 / 252 100.0% 1,407 / 1,407 — —
EdgeEdge
 100.0% 1,083 / 1,083 — — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 393 / 393 100.0% 62 / 62 — — 100.0% 60 / 60