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Codec: avc1.421415

3.36% Encoder Support
72,267 of 2,149,392 sessions supported encoding
99.81% Decoder Support
2,094,187 of 2,098,269 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,392 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 225 / 868,158 0.17% 174 / 100,842 — 0.31% 2,019 / 650,370 0.9% 394 / 43,683
SafariSafari
 — 1.59% 760 / 47,874 1.8% 3,935 / 218,203 — —
EdgeEdge
 0.03% 37 / 143,380 0.0% 0 / 1,464 — 0.0% 0 / 4,274 0.3% 2 / 666
FirefoxFirefox
 95.86% 51,181 / 53,389 99.89% 7,481 / 7,489 — 0.0% 0 / 115 97.82% 5,878 / 6,009

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,269 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,375 / 845,573 99.82% 96,928 / 97,102 — 99.65% 638,255 / 640,482 98.27% 41,754 / 42,490
SafariSafari
 — 99.84% 46,472 / 46,548 99.98% 212,557 / 212,607 — —
EdgeEdge
 99.99% 139,382 / 139,390 100.0% 1,424 / 1,424 — 100.0% 4,192 / 4,192 99.39% 657 / 661
FirefoxFirefox
 99.97% 51,584 / 51,601 99.94% 7,241 / 7,245 — 0.0% 0 / 102 98.47% 5,677 / 5,765