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Codec: avc1.42043c

87.23% Encoder Support
1,875,606 of 2,150,295 sessions supported encoding
87.42% Decoder Support
1,835,126 of 2,099,199 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 2,150,295 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.91% 867,344 / 868,149 99.67% 100,576 / 100,905 — 99.24% 644,799 / 649,706 97.16% 42,604 / 43,850
SafariSafari
 — 1.54% 743 / 48,273 1.81% 3,943 / 218,322 — —
EdgeEdge
 99.98% 143,961 / 143,993 99.86% 1,467 / 1,469 — 99.89% 4,350 / 4,355 98.66% 662 / 671
FirefoxFirefox
 95.99% 51,543 / 53,695 99.96% 7,312 / 7,315 — 0.0% 0 / 110 98.72% 5,930 / 6,007

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,199 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 845,133 / 845,548 99.66% 96,918 / 97,244 — 99.37% 635,589 / 639,640 97.29% 41,501 / 42,658
SafariSafari
 — 1.62% 758 / 46,869 1.81% 3,851 / 212,859 — —
EdgeEdge
 99.98% 140,038 / 140,070 99.93% 1,432 / 1,433 — 100.0% 4,280 / 4,280 98.95% 659 / 666
FirefoxFirefox
 99.94% 51,901 / 51,932 99.8% 7,057 / 7,071 — 0.0% 0 / 98 98.23% 5,663 / 5,765