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Codec: avc1.641428

86.19% Encoder Support
276,312 of 320,587 sessions supported encoding
99.93% Decoder Support
269,352 of 269,541 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,587 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.25% 143,601 / 144,688 99.84% 19,686 / 19,718 — 96.27% 60,884 / 63,245 97.3% 7,579 / 7,789
SafariSafari
 — 2.13% 184 / 8,650 1.53% 479 / 31,387 — —
EdgeEdge
 99.8% 30,716 / 30,778 99.72% 357 / 358 — 98.1% 927 / 945 96.83% 61 / 63
FirefoxFirefox
 96.06% 9,097 / 9,470 100.0% 1,342 / 1,342 — 0.0% 0 / 39 99.17% 1,309 / 1,320

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,541 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,197 / 122,232 99.89% 16,022 / 16,040 — 99.99% 53,374 / 53,382 99.06% 6,553 / 6,615
SafariSafari
 — 99.89% 7,228 / 7,236 99.98% 25,776 / 25,782 — —
EdgeEdge
 100.0% 26,756 / 26,756 100.0% 311 / 311 — 100.0% 867 / 867 98.21% 55 / 56
FirefoxFirefox
 99.97% 7,679 / 7,681 100.0% 1,090 / 1,090 — 0.0% 0 / 30 99.44% 1,062 / 1,068