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Codec: avc1.4d1434

86.43% Encoder Support
1,857,316 of 2,148,938 sessions supported encoding
99.8% Decoder Support
2,094,010 of 2,098,217 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,938 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 862,595 / 867,865 99.74% 100,227 / 100,485 — 97.36% 632,502 / 649,646 96.64% 42,255 / 43,724
SafariSafari
 — 1.52% 736 / 48,309 1.87% 4,073 / 218,315 — —
EdgeEdge
 99.87% 143,603 / 143,791 100.0% 1,474 / 1,474 — 99.07% 4,253 / 4,293 98.33% 646 / 657
FirefoxFirefox
 95.91% 51,221 / 53,408 99.97% 7,377 / 7,379 — 0.0% 0 / 111 98.81% 5,989 / 6,061

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,217 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,413 / 845,605 99.79% 96,612 / 96,817 — 99.64% 637,461 / 639,786 98.32% 41,798 / 42,512
SafariSafari
 — 99.82% 46,839 / 46,923 99.97% 212,719 / 212,773 — —
EdgeEdge
 100.0% 139,827 / 139,831 100.0% 1,441 / 1,441 — 100.0% 4,218 / 4,218 98.77% 640 / 648
FirefoxFirefox
 99.96% 51,555 / 51,577 99.94% 7,132 / 7,136 — 0.0% 0 / 99 98.35% 5,709 / 5,805