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Codec: avc1.420c3d

87.21% Encoder Support
1,874,113 of 2,148,993 sessions supported encoding
87.41% Decoder Support
1,833,734 of 2,097,858 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,993 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.91% 865,914 / 866,737 99.66% 100,096 / 100,435 — 99.23% 645,286 / 650,284 97.29% 42,653 / 43,843
SafariSafari
 — 1.4% 669 / 47,906 1.8% 3,939 / 218,769 — —
EdgeEdge
 99.97% 144,089 / 144,131 100.0% 1,440 / 1,440 — 99.84% 4,266 / 4,273 99.27% 680 / 685
FirefoxFirefox
 95.91% 51,372 / 53,563 99.96% 7,463 / 7,466 — 0.0% 0 / 110 98.75% 5,918 / 5,993

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,858 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 843,874 / 844,251 99.66% 96,411 / 96,737 — 99.35% 636,214 / 640,374 97.4% 41,503 / 42,613
SafariSafari
 — 1.47% 686 / 46,561 1.8% 3,843 / 213,164 — —
EdgeEdge
 99.97% 140,026 / 140,067 100.0% 1,401 / 1,401 — 100.0% 4,198 / 4,198 99.41% 675 / 679
FirefoxFirefox
 99.94% 51,740 / 51,771 99.74% 7,204 / 7,223 — 0.0% 0 / 103 98.18% 5,652 / 5,757