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Codec: avc1.42142a

87.34% Encoder Support
1,876,856 of 2,148,880 sessions supported encoding
99.8% Decoder Support
2,093,570 of 2,097,832 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,880 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,805 / 868,407 99.79% 100,120 / 100,328 — 99.5% 646,095 / 649,337 98.03% 43,172 / 44,041
SafariSafari
 — 1.55% 749 / 48,202 1.81% 3,961 / 218,263 — —
EdgeEdge
 99.99% 143,598 / 143,606 99.93% 1,460 / 1,461 — 99.88% 4,298 / 4,303 99.02% 706 / 713
FirefoxFirefox
 95.9% 51,100 / 53,285 99.99% 7,357 / 7,358 — 0.79% 1 / 126 98.89% 5,952 / 6,019

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,832 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,703 / 845,908 99.78% 96,464 / 96,672 — 99.64% 637,010 / 639,329 98.29% 42,173 / 42,908
SafariSafari
 — 99.82% 46,725 / 46,811 99.98% 212,637 / 212,688 — —
EdgeEdge
 99.99% 139,569 / 139,577 100.0% 1,420 / 1,420 — 100.0% 4,223 / 4,223 99.01% 702 / 709
FirefoxFirefox
 99.96% 51,494 / 51,513 99.99% 7,126 / 7,127 — 0.85% 1 / 118 98.42% 5,686 / 5,777