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Codec: avc1.420028

99.7% Encoder Support
319,447 of 320,407 sessions supported encoding
99.93% Decoder Support
269,328 of 269,504 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,407 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.84% 143,856 / 144,088 99.91% 19,552 / 19,569 — 99.76% 63,618 / 63,769 98.79% 7,766 / 7,861
SafariSafari
 — 99.93% 8,504 / 8,510 99.98% 31,175 / 31,180 — —
EdgeEdge
 100.0% 30,899 / 30,899 100.0% 378 / 378 — 99.79% 959 / 961 100.0% 53 / 53
FirefoxFirefox
 96.02% 9,306 / 9,692 100.0% 1,339 / 1,339 — 0.0% 0 / 32 99.22% 1,280 / 1,290

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,504 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,602 / 121,623 99.9% 15,933 / 15,949 — 99.98% 53,821 / 53,831 98.94% 6,558 / 6,628
SafariSafari
 — 99.93% 7,138 / 7,143 99.98% 25,580 / 25,585 — —
EdgeEdge
 100.0% 26,891 / 26,891 100.0% 338 / 338 — 100.0% 893 / 893 100.0% 48 / 48
FirefoxFirefox
 100.0% 7,985 / 7,985 100.0% 1,111 / 1,111 — 0.0% 0 / 24 99.62% 1,055 / 1,059