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Codec: avc1.420816

87.22% Encoder Support
279,050 of 319,947 sessions supported encoding
99.93% Decoder Support
268,618 of 268,794 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,947 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 143,135 / 143,377 99.91% 19,736 / 19,754 — 99.77% 63,565 / 63,710 98.8% 7,656 / 7,749
SafariSafari
 — 2.09% 180 / 8,607 1.37% 429 / 31,292 — —
EdgeEdge
 100.0% 30,942 / 30,942 99.72% 361 / 362 — 99.69% 965 / 968 98.44% 63 / 64
FirefoxFirefox
 96.22% 9,314 / 9,680 100.0% 1,327 / 1,327 — 0.0% 0 / 31 99.06% 1,263 / 1,275

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,794 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 120,887 / 120,925 99.89% 16,100 / 16,118 — 99.99% 53,632 / 53,640 99.02% 6,470 / 6,534
SafariSafari
 — 99.96% 7,197 / 7,200 99.99% 25,605 / 25,608 — —
EdgeEdge
 100.0% 27,041 / 27,041 100.0% 321 / 321 — 100.0% 885 / 885 100.0% 58 / 58
FirefoxFirefox
 99.97% 7,898 / 7,900 100.0% 1,093 / 1,093 — 0.0% 0 / 23 99.71% 1,033 / 1,036