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Codec: avc1.42043c

87.28% Encoder Support
280,201 of 321,026 sessions supported encoding
87.8% Decoder Support
236,994 of 269,930 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 321,026 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.81% 144,308 / 144,579 99.83% 19,674 / 19,707 — 99.66% 63,542 / 63,758 98.21% 7,614 / 7,753
SafariSafari
 — 2.07% 179 / 8,628 1.39% 431 / 31,006 — —
EdgeEdge
 99.98% 30,953 / 30,959 99.71% 349 / 350 — 99.7% 993 / 996 98.55% 68 / 69
FirefoxFirefox
 96.15% 9,345 / 9,719 100.0% 1,321 / 1,321 — 0.0% 0 / 36 98.59% 1,325 / 1,344

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,930 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,917 / 121,978 99.81% 16,015 / 16,046 — 99.84% 53,604 / 53,692 98.37% 6,454 / 6,561
SafariSafari
 — 2.06% 149 / 7,224 1.33% 339 / 25,543 — —
EdgeEdge
 99.98% 27,030 / 27,036 100.0% 314 / 314 — 100.0% 921 / 921 100.0% 64 / 64
FirefoxFirefox
 99.95% 7,952 / 7,956 100.0% 1,077 / 1,077 — 0.0% 0 / 24 99.0% 1,091 / 1,102