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Codec: avc1.421416

87.31% Encoder Support
280,535 of 321,296 sessions supported encoding
99.93% Decoder Support
269,900 of 270,081 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,296 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.82% 144,427 / 144,682 99.91% 19,711 / 19,729 — 99.78% 63,719 / 63,860 98.95% 7,648 / 7,729
SafariSafari
 — 1.79% 152 / 8,472 1.48% 464 / 31,264 — —
EdgeEdge
 100.0% 31,025 / 31,025 100.0% 358 / 358 — 99.9% 962 / 963 98.11% 52 / 53
FirefoxFirefox
 95.91% 9,221 / 9,614 100.0% 1,361 / 1,361 — 0.0% 0 / 36 98.6% 1,334 / 1,353

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,081 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,033 / 122,066 99.89% 16,027 / 16,044 — 99.99% 53,847 / 53,852 99.09% 6,438 / 6,497
SafariSafari
 — 99.92% 7,074 / 7,080 99.99% 25,683 / 25,686 — —
EdgeEdge
 100.0% 27,221 / 27,221 100.0% 316 / 316 — 100.0% 879 / 879 97.92% 47 / 48
FirefoxFirefox
 99.99% 7,781 / 7,782 100.0% 1,103 / 1,103 — 0.0% 0 / 28 99.18% 1,083 / 1,092