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Codec: avc1.421416

87.35% Encoder Support
1,877,295 of 2,149,049 sessions supported encoding
99.8% Decoder Support
2,093,697 of 2,097,833 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 2,149,049 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,868 / 867,487 99.8% 100,563 / 100,761 — 99.51% 647,574 / 650,791 97.93% 43,143 / 44,057
SafariSafari
 — 1.49% 711 / 47,667 1.82% 3,977 / 218,424 — —
EdgeEdge
 100.0% 142,911 / 142,916 100.0% 1,431 / 1,431 — 99.88% 4,208 / 4,213 99.27% 682 / 687
FirefoxFirefox
 95.78% 51,311 / 53,573 100.0% 7,375 / 7,375 — 0.93% 1 / 107 98.79% 6,066 / 6,140

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,833 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,681 / 844,871 99.8% 96,882 / 97,076 — 99.65% 638,521 / 640,783 98.17% 42,040 / 42,825
SafariSafari
 — 99.82% 46,193 / 46,274 99.98% 212,807 / 212,846 — —
EdgeEdge
 100.0% 139,107 / 139,112 100.0% 1,389 / 1,389 — 100.0% 4,129 / 4,129 99.56% 679 / 682
FirefoxFirefox
 99.98% 51,729 / 51,741 99.99% 7,116 / 7,117 — 1.01% 1 / 99 98.32% 5,780 / 5,879