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Codec: avc1.4d1433

86.45% Encoder Support
1,857,264 of 2,148,464 sessions supported encoding
99.8% Decoder Support
2,093,141 of 2,097,304 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,464 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.38% 862,158 / 867,508 99.75% 100,118 / 100,367 — 97.37% 633,049 / 650,154 96.59% 42,013 / 43,495
SafariSafari
 — 1.56% 753 / 48,403 1.87% 4,071 / 217,655 — —
EdgeEdge
 99.85% 143,888 / 144,109 99.93% 1,490 / 1,491 — 99.39% 4,222 / 4,248 98.83% 678 / 686
FirefoxFirefox
 95.87% 51,101 / 53,301 99.96% 7,360 / 7,363 — 0.93% 1 / 107 98.83% 5,995 / 6,066

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,304 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,904 / 845,089 99.79% 96,473 / 96,675 — 99.65% 637,773 / 640,035 98.3% 41,640 / 42,359
SafariSafari
 — 99.81% 46,921 / 47,008 99.98% 212,057 / 212,090 — —
EdgeEdge
 99.99% 140,060 / 140,069 100.0% 1,444 / 1,444 — 100.0% 4,175 / 4,175 98.83% 675 / 683
FirefoxFirefox
 99.96% 51,501 / 51,521 99.96% 7,141 / 7,144 — 1.01% 1 / 99 98.14% 5,712 / 5,820