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Codec: avc1.42003c

85.28% Encoder Support
53,455 of 62,681 sessions supported encoding
85.58% Decoder Support
10,077 of 11,775 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 62,681 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.74% 27,375 / 27,447 99.91% 4,346 / 4,350 — 99.65% 12,132 / 12,175 98.27% 1,534 / 1,561
SafariSafari
 — 2.18% 36 / 1,651 1.69% 118 / 6,994 — —
EdgeEdge
 100.0% 5,053 / 5,053 98.41% 62 / 63 — 100.0% 110 / 110 90.0% 9 / 10
FirefoxFirefox
 95.33% 2,063 / 2,164 100.0% 285 / 285 — 0.0% 0 / 12 99.66% 295 / 296

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,775 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,147 / 5,149 99.85% 669 / 670 — 99.68% 2,197 / 2,204 98.97% 385 / 389
SafariSafari
 — 1.12% 3 / 268 1.82% 25 / 1,373 — —
EdgeEdge
 100.0% 1,080 / 1,080 100.0% 13 / 13 — 100.0% 29 / 29 —
FirefoxFirefox
 100.0% 414 / 414 100.0% 57 / 57 — — 100.0% 48 / 48