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Codec: avc1.4d0c34

86.5% Encoder Support
277,381 of 320,654 sessions supported encoding
99.93% Decoder Support
269,454 of 269,638 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,654 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 143,101 / 144,152 99.86% 19,503 / 19,530 — 97.59% 62,199 / 63,734 97.89% 7,759 / 7,926
SafariSafari
 — 2.13% 183 / 8,610 1.54% 481 / 31,289 — —
EdgeEdge
 99.81% 30,973 / 31,031 99.72% 357 / 358 — 98.94% 934 / 944 96.55% 56 / 58
FirefoxFirefox
 95.82% 9,199 / 9,600 100.0% 1,312 / 1,312 — 0.0% 0 / 40 98.8% 1,239 / 1,254

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,638 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,581 / 121,616 99.88% 15,883 / 15,902 — 99.99% 53,883 / 53,889 99.08% 6,661 / 6,723
SafariSafari
 — 99.94% 7,225 / 7,229 100.0% 25,695 / 25,696 — —
EdgeEdge
 100.0% 26,981 / 26,981 100.0% 319 / 319 — 100.0% 856 / 856 98.08% 51 / 52
FirefoxFirefox
 100.0% 7,846 / 7,846 100.0% 1,069 / 1,069 — 0.0% 0 / 32 99.51% 1,018 / 1,023