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Codec: avc1.420429

87.29% Encoder Support
279,724 of 320,463 sessions supported encoding
99.92% Decoder Support
269,061 of 269,269 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 320,463 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.84% 143,825 / 144,056 99.9% 19,638 / 19,658 — 99.77% 63,304 / 63,452 98.75% 7,584 / 7,680
SafariSafari
 — 1.8% 156 / 8,649 1.54% 478 / 31,114 — —
EdgeEdge
 100.0% 31,207 / 31,208 100.0% 381 / 381 — 99.59% 982 / 986 97.67% 42 / 43
FirefoxFirefox
 96.1% 9,376 / 9,756 100.0% 1,361 / 1,361 — 0.0% 0 / 38 99.0% 1,282 / 1,295

VideoDecoder Support Matrix

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

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,551 / 121,591 99.87% 15,957 / 15,977 — 99.98% 53,436 / 53,445 98.87% 6,458 / 6,532
SafariSafari
 — 99.92% 7,272 / 7,278 99.98% 25,445 / 25,449 — —
EdgeEdge
 100.0% 27,225 / 27,225 100.0% 333 / 333 — 100.0% 911 / 911 97.14% 34 / 35
FirefoxFirefox
 99.99% 7,914 / 7,915 100.0% 1,117 / 1,117 — 0.0% 0 / 26 99.34% 1,059 / 1,066