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Codec: avc1.42041e

87.2% Encoder Support
279,313 of 320,312 sessions supported encoding
99.94% Decoder Support
269,220 of 269,386 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 10 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,312 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 143,594 / 143,844 99.91% 19,724 / 19,741 — 99.76% 63,438 / 63,589 98.92% 7,661 / 7,745
SafariSafari
 — 1.87% 161 / 8,621 1.4% 439 / 31,390 — —
EdgeEdge
 100.0% 30,794 / 30,795 99.73% 365 / 366 — 99.79% 960 / 962 98.48% 65 / 66
FirefoxFirefox
 96.26% 9,433 / 9,800 100.0% 1,341 / 1,341 — 0.0% 0 / 34 98.96% 1,240 / 1,253

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,386 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,302 / 121,334 99.89% 16,091 / 16,108 — 99.99% 53,684 / 53,689 99.19% 6,454 / 6,507
SafariSafari
 — 99.92% 7,183 / 7,189 99.98% 25,909 / 25,914 — —
EdgeEdge
 100.0% 26,799 / 26,800 100.0% 322 / 322 — 100.0% 886 / 886 100.0% 58 / 58
FirefoxFirefox
 99.99% 8,026 / 8,027 100.0% 1,123 / 1,123 — 0.0% 0 / 23 99.04% 1,028 / 1,038