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Codec: avc1.42003d

87.23% Encoder Support
279,054 of 319,899 sessions supported encoding
87.77% Decoder Support
236,066 of 268,953 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,899 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.8% 143,881 / 144,166 99.75% 19,583 / 19,632 — 99.63% 63,214 / 63,448 98.22% 7,616 / 7,754
SafariSafari
 — 2.01% 170 / 8,456 1.41% 439 / 31,158 — —
EdgeEdge
 99.99% 30,811 / 30,815 99.71% 349 / 350 — 99.78% 921 / 923 96.36% 53 / 55
FirefoxFirefox
 96.04% 9,307 / 9,691 100.0% 1,358 / 1,358 — 0.0% 0 / 32 98.66% 1,256 / 1,273

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,953 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,480 / 121,543 99.74% 15,999 / 16,041 — 99.82% 53,557 / 53,656 98.4% 6,407 / 6,511
SafariSafari
 — 1.99% 141 / 7,080 1.4% 360 / 25,625 — —
EdgeEdge
 99.99% 26,822 / 26,826 100.0% 307 / 307 — 100.0% 851 / 851 97.83% 45 / 46
FirefoxFirefox
 99.94% 7,873 / 7,878 99.91% 1,113 / 1,114 — 0.0% 0 / 22 98.86% 1,041 / 1,053