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Codec: avc1.420829

87.23% Encoder Support
279,586 of 320,522 sessions supported encoding
99.93% Decoder Support
269,186 of 269,371 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,522 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 143,525 / 143,771 99.92% 19,706 / 19,722 — 99.77% 63,726 / 63,875 98.84% 7,669 / 7,759
SafariSafari
 — 2.13% 184 / 8,620 1.46% 458 / 31,303 — —
EdgeEdge
 99.99% 30,837 / 30,839 99.74% 389 / 390 — 99.5% 991 / 996 100.0% 56 / 56
FirefoxFirefox
 96.29% 9,316 / 9,675 100.0% 1,338 / 1,338 — 0.0% 0 / 43 98.62% 1,286 / 1,304

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,371 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,348 / 121,375 99.91% 16,073 / 16,088 — 99.98% 53,895 / 53,906 99.01% 6,522 / 6,587
SafariSafari
 — 99.96% 7,193 / 7,196 99.98% 25,642 / 25,648 — —
EdgeEdge
 100.0% 26,839 / 26,840 100.0% 336 / 336 — 100.0% 911 / 911 100.0% 51 / 51
FirefoxFirefox
 100.0% 7,861 / 7,861 100.0% 1,091 / 1,091 — 0.0% 0 / 29 98.95% 1,039 / 1,050