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Codec: avc1.420c3c

87.22% Encoder Support
1,874,403 of 2,149,077 sessions supported encoding
87.43% Decoder Support
1,834,412 of 2,098,267 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,077 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.91% 866,297 / 867,106 99.66% 100,113 / 100,457 — 99.25% 644,870 / 649,769 97.32% 42,792 / 43,970
SafariSafari
 — 1.51% 734 / 48,506 1.87% 4,084 / 218,224 — —
EdgeEdge
 99.97% 143,729 / 143,773 99.93% 1,413 / 1,414 — 99.9% 4,205 / 4,209 99.39% 647 / 651
FirefoxFirefox
 95.94% 51,802 / 53,996 99.97% 7,350 / 7,352 — 0.0% 0 / 115 98.65% 5,998 / 6,080

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,267 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 844,331 / 844,726 99.65% 96,518 / 96,855 — 99.36% 635,840 / 639,918 97.45% 41,689 / 42,780
SafariSafari
 — 1.57% 740 / 47,121 1.88% 3,996 / 212,562 — —
EdgeEdge
 99.97% 139,777 / 139,820 99.93% 1,373 / 1,374 — 100.0% 4,127 / 4,127 99.53% 640 / 643
FirefoxFirefox
 99.94% 52,168 / 52,198 99.82% 7,120 / 7,133 — 0.0% 0 / 109 98.44% 5,750 / 5,841