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Codec: avc1.64103c

86.26% Encoder Support
275,570 of 319,468 sessions supported encoding
87.74% Decoder Support
235,702 of 268,630 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,468 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 142,927 / 143,930 99.78% 19,627 / 19,670 — 96.36% 60,743 / 63,038 97.04% 7,470 / 7,698
SafariSafari
 — 2.02% 174 / 8,616 1.51% 469 / 31,133 — —
EdgeEdge
 99.8% 30,729 / 30,792 100.0% 361 / 361 — 98.09% 978 / 997 97.3% 72 / 74
FirefoxFirefox
 96.03% 9,299 / 9,683 100.0% 1,295 / 1,295 — 0.0% 0 / 38 98.81% 1,333 / 1,349

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,630 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,609 / 121,661 99.75% 15,952 / 15,992 — 99.86% 52,988 / 53,063 98.1% 6,364 / 6,487
SafariSafari
 — 2.0% 144 / 7,203 1.49% 380 / 25,575 — —
EdgeEdge
 99.98% 26,769 / 26,775 100.0% 321 / 321 — 100.0% 924 / 924 98.55% 68 / 69
FirefoxFirefox
 99.97% 7,935 / 7,937 99.81% 1,066 / 1,068 — 0.0% 0 / 26 99.03% 1,123 / 1,134