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Codec: avc1.4d103c

86.41% Encoder Support
1,856,261 of 2,148,313 sessions supported encoding
87.41% Decoder Support
1,833,077 of 2,097,158 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,313 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 862,270 / 867,573 99.59% 100,427 / 100,838 — 97.38% 631,632 / 648,619 96.19% 42,418 / 44,096
SafariSafari
 — 1.53% 738 / 48,277 1.85% 4,044 / 218,425 — —
EdgeEdge
 99.84% 143,295 / 143,523 99.93% 1,476 / 1,477 — 99.27% 4,189 / 4,220 99.41% 679 / 683
FirefoxFirefox
 95.93% 51,417 / 53,597 99.99% 7,390 / 7,391 — 0.84% 1 / 119 98.7% 5,916 / 5,994

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,158 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 844,640 / 845,039 99.59% 96,712 / 97,109 — 99.37% 634,636 / 638,672 97.29% 41,689 / 42,851
SafariSafari
 — 1.61% 754 / 46,936 1.86% 3,953 / 212,865 — —
EdgeEdge
 99.97% 139,583 / 139,623 100.0% 1,439 / 1,439 — 100.0% 4,139 / 4,139 99.56% 674 / 677
FirefoxFirefox
 99.94% 51,725 / 51,754 99.86% 7,145 / 7,155 — 0.92% 1 / 109 98.05% 5,640 / 5,752