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Codec: avc1.420834

85.51% Encoder Support
53,704 of 62,801 sessions supported encoding
99.93% Decoder Support
11,816 of 11,824 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,801 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.73% 27,629 / 27,703 99.95% 4,315 / 4,317 99.75% 12,133 / 12,164 98.85% 1,634 / 1,653
SafariSafari
2.35% 38 / 1,620 1.63% 113 / 6,941
EdgeEdge
100.0% 5,017 / 5,017 100.0% 50 / 50 100.0% 111 / 111
FirefoxFirefox
95.48% 2,068 / 2,166 100.0% 282 / 282 98.9% 270 / 273

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,824 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.96% 5,183 / 5,185 99.85% 678 / 679 100.0% 2,216 / 2,216 99.51% 404 / 406
SafariSafari
100.0% 268 / 268 100.0% 1,385 / 1,385
EdgeEdge
100.0% 1,028 / 1,028 100.0% 35 / 35
FirefoxFirefox
100.0% 412 / 412 100.0% 49 / 49 100.0% 60 / 60