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Codec: avc1.64140a

3.25% Encoder Support
69,854 of 2,148,862 sessions supported encoding
99.8% Decoder Support
2,093,660 of 2,097,837 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,862 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 74 / 867,684 0.12% 124 / 100,513 — 0.02% 137 / 649,682 0.32% 140 / 43,678
SafariSafari
 — 1.57% 757 / 48,323 1.86% 4,065 / 218,406 — —
EdgeEdge
 0.0% 7 / 143,855 0.0% 0 / 1,446 — 0.0% 0 / 4,220 0.29% 2 / 678
FirefoxFirefox
 95.97% 51,112 / 53,260 99.87% 7,508 / 7,518 — 0.0% 0 / 126 98.14% 5,866 / 5,977

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,837 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,006 / 845,217 99.83% 96,639 / 96,806 — 99.64% 637,537 / 639,813 98.23% 41,725 / 42,476
SafariSafari
 — 99.84% 46,907 / 46,980 99.97% 212,749 / 212,811 — —
EdgeEdge
 99.99% 139,779 / 139,787 100.0% 1,409 / 1,409 — 100.0% 4,138 / 4,138 99.4% 666 / 670
FirefoxFirefox
 99.96% 51,468 / 51,488 99.95% 7,294 / 7,298 — 0.87% 1 / 115 98.31% 5,638 / 5,735