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Codec: avc1.4d042a

86.43% Encoder Support
1,856,881 of 2,148,396 sessions supported encoding
99.8% Decoder Support
2,093,093 of 2,097,226 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,396 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,227 / 867,448 99.74% 100,396 / 100,657 — 97.36% 632,091 / 649,248 96.66% 42,334 / 43,795
SafariSafari
 — 1.51% 726 / 48,208 1.85% 4,028 / 218,172 — —
EdgeEdge
 99.84% 143,642 / 143,875 100.0% 1,533 / 1,533 — 99.22% 4,190 / 4,223 98.97% 675 / 682
FirefoxFirefox
 95.87% 51,311 / 53,519 99.95% 7,418 / 7,422 — 0.89% 1 / 112 98.59% 5,926 / 6,011

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,226 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,787 / 844,973 99.79% 96,818 / 97,022 — 99.63% 636,969 / 639,315 98.4% 41,904 / 42,585
SafariSafari
 — 99.83% 46,761 / 46,842 99.98% 212,446 / 212,488 — —
EdgeEdge
 100.0% 139,817 / 139,823 100.0% 1,487 / 1,487 — 100.0% 4,143 / 4,143 99.41% 672 / 676
FirefoxFirefox
 99.97% 51,730 / 51,748 99.94% 7,179 / 7,183 — 0.98% 1 / 102 98.58% 5,689 / 5,771