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Codec: avc1.420416

87.35% Encoder Support
1,875,291 of 2,146,808 sessions supported encoding
99.81% Decoder Support
2,092,037 of 2,096,056 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,808 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,076 / 866,688 99.81% 100,308 / 100,496 — 99.51% 646,016 / 649,185 98.04% 42,832 / 43,687
SafariSafari
 — 1.53% 738 / 48,189 1.83% 3,978 / 217,828 — —
EdgeEdge
 99.99% 143,800 / 143,811 100.0% 1,440 / 1,440 — 99.81% 4,162 / 4,170 99.14% 692 / 698
FirefoxFirefox
 95.86% 51,371 / 53,590 100.0% 7,530 / 7,530 — 0.0% 0 / 101 98.86% 5,894 / 5,962

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,056 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,149 / 844,331 99.81% 96,614 / 96,799 — 99.65% 637,057 / 639,282 98.33% 41,802 / 42,512
SafariSafari
 — 99.82% 46,717 / 46,802 99.98% 212,283 / 212,331 — —
EdgeEdge
 99.99% 139,848 / 139,859 100.0% 1,411 / 1,411 — 100.0% 4,106 / 4,106 99.42% 688 / 692
FirefoxFirefox
 99.97% 51,770 / 51,787 99.97% 7,298 / 7,300 — 0.0% 0 / 92 98.44% 5,626 / 5,715