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Codec: avc1.4d143c

86.42% Encoder Support
1,855,271 of 2,146,905 sessions supported encoding
87.43% Decoder Support
1,831,959 of 2,095,459 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,905 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 860,211 / 865,496 99.65% 100,418 / 100,770 — 97.37% 632,372 / 649,454 96.39% 42,464 / 44,054
SafariSafari
 — 1.55% 745 / 48,137 1.84% 4,023 / 218,107 — —
EdgeEdge
 99.84% 143,683 / 143,910 100.0% 1,455 / 1,455 — 99.43% 4,217 / 4,241 99.41% 673 / 677
FirefoxFirefox
 95.84% 51,406 / 53,639 99.93% 7,290 / 7,295 — 1.79% 2 / 112 98.82% 5,946 / 6,017

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,095,459 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 842,392 / 842,768 99.64% 96,822 / 97,171 — 99.36% 635,418 / 639,494 97.38% 41,698 / 42,819
SafariSafari
 — 1.61% 755 / 46,770 1.86% 3,944 / 212,454 — —
EdgeEdge
 99.97% 139,756 / 139,794 100.0% 1,423 / 1,423 — 100.0% 4,171 / 4,171 99.7% 672 / 674
FirefoxFirefox
 99.96% 51,834 / 51,857 99.73% 7,055 / 7,074 — 1.85% 2 / 108 98.22% 5,676 / 5,779