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Codec: avc1.4d1432

86.58% Encoder Support
277,608 of 320,648 sessions supported encoding
99.92% Decoder Support
269,501 of 269,706 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,648 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,216 / 144,260 99.88% 19,635 / 19,658 — 97.58% 61,918 / 63,456 97.71% 7,707 / 7,888
SafariSafari
 — 2.04% 173 / 8,490 1.43% 446 / 31,181 — —
EdgeEdge
 99.82% 31,053 / 31,110 100.0% 362 / 362 — 99.37% 945 / 951 100.0% 57 / 57
FirefoxFirefox
 96.25% 9,416 / 9,783 100.0% 1,296 / 1,296 — 0.0% 0 / 47 98.7% 1,287 / 1,304

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,706 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,759 / 121,795 99.89% 16,003 / 16,020 — 99.98% 53,568 / 53,579 98.96% 6,565 / 6,634
SafariSafari
 — 99.9% 7,123 / 7,130 99.98% 25,635 / 25,639 — —
EdgeEdge
 100.0% 27,114 / 27,114 100.0% 320 / 320 — 100.0% 882 / 882 100.0% 51 / 51
FirefoxFirefox
 99.99% 7,955 / 7,956 100.0% 1,077 / 1,077 — 0.0% 0 / 37 99.34% 1,061 / 1,068