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Codec: avc1.42143c

87.2% Encoder Support
1,874,144 of 2,149,190 sessions supported encoding
87.4% Decoder Support
1,833,973 of 2,098,298 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,190 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.9% 865,745 / 866,572 99.65% 100,682 / 101,032 — 99.24% 645,464 / 650,397 97.29% 42,363 / 43,541
SafariSafari
 — 1.52% 734 / 48,145 1.86% 4,076 / 218,937 — —
EdgeEdge
 99.97% 143,406 / 143,445 99.94% 1,546 / 1,547 — 99.76% 4,201 / 4,211 99.72% 703 / 705
FirefoxFirefox
 95.98% 51,581 / 53,739 99.99% 7,439 / 7,440 — 0.0% 0 / 108 98.9% 5,861 / 5,926

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,298 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 843,900 / 844,295 99.65% 97,085 / 97,427 — 99.36% 636,272 / 640,345 97.41% 41,266 / 42,363
SafariSafari
 — 1.57% 733 / 46,826 1.87% 3,984 / 213,318 — —
EdgeEdge
 99.97% 139,425 / 139,464 100.0% 1,508 / 1,508 — 100.0% 4,143 / 4,143 99.71% 695 / 697
FirefoxFirefox
 99.94% 51,824 / 51,856 99.86% 7,190 / 7,200 — 0.0% 0 / 100 98.65% 5,627 / 5,704