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Codec: avc1.42143d

87.12% Encoder Support
279,725 of 321,080 sessions supported encoding
87.68% Decoder Support
236,813 of 270,097 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 321,080 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.79% 143,782 / 144,086 99.74% 19,738 / 19,789 — 99.67% 63,460 / 63,673 98.37% 7,779 / 7,908
SafariSafari
 — 2.13% 185 / 8,702 1.57% 495 / 31,459 — —
EdgeEdge
 99.98% 31,018 / 31,024 100.0% 359 / 359 — 99.48% 951 / 956 98.21% 55 / 56
FirefoxFirefox
 96.19% 9,163 / 9,526 100.0% 1,353 / 1,353 — 0.0% 0 / 35 98.69% 1,278 / 1,295

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,097 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,572 / 121,638 99.74% 16,068 / 16,110 — 99.85% 53,635 / 53,713 98.43% 6,567 / 6,672
SafariSafari
 — 2.06% 150 / 7,292 1.53% 396 / 25,878 — —
EdgeEdge
 99.98% 27,186 / 27,192 100.0% 317 / 317 — 100.0% 875 / 875 100.0% 52 / 52
FirefoxFirefox
 99.92% 7,755 / 7,761 100.0% 1,112 / 1,112 — 0.0% 0 / 26 99.34% 1,051 / 1,058