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Codec: avc1.4d1429

86.51% Encoder Support
277,698 of 320,998 sessions supported encoding
99.93% Decoder Support
269,783 of 269,964 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,998 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 143,186 / 144,198 99.84% 19,740 / 19,771 — 97.48% 62,107 / 63,711 97.62% 7,635 / 7,821
SafariSafari
 — 2.0% 171 / 8,536 1.57% 492 / 31,422 — —
EdgeEdge
 99.82% 30,934 / 30,989 100.0% 361 / 361 — 99.17% 958 / 966 98.55% 68 / 69
FirefoxFirefox
 96.08% 9,329 / 9,710 100.0% 1,337 / 1,337 — 0.0% 0 / 23 99.23% 1,286 / 1,296

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,964 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,674 / 121,707 99.85% 16,034 / 16,058 — 99.98% 53,780 / 53,789 98.89% 6,520 / 6,593
SafariSafari
 — 99.93% 7,179 / 7,184 99.99% 25,802 / 25,804 — —
EdgeEdge
 100.0% 26,988 / 26,988 100.0% 324 / 324 — 100.0% 889 / 889 98.51% 66 / 67
FirefoxFirefox
 99.99% 7,965 / 7,966 100.0% 1,109 / 1,109 — 0.0% 0 / 16 99.72% 1,059 / 1,062