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Codec: avc1.4d0434

86.55% Encoder Support
277,099 of 320,152 sessions supported encoding
99.93% Decoder Support
269,017 of 269,204 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 320,152 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.32% 143,030 / 144,010 99.82% 19,593 / 19,629 — 97.58% 62,205 / 63,749 97.54% 7,500 / 7,689
SafariSafari
 — 2.1% 181 / 8,627 1.54% 480 / 31,137 — —
EdgeEdge
 99.82% 30,656 / 30,712 100.0% 373 / 373 — 98.93% 1,018 / 1,029 98.39% 61 / 62
FirefoxFirefox
 96.06% 9,335 / 9,718 100.0% 1,289 / 1,289 — 0.0% 0 / 28 98.7% 1,287 / 1,304

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,204 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,426 / 121,457 99.86% 16,002 / 16,025 — 99.98% 53,848 / 53,857 99.03% 6,443 / 6,506
SafariSafari
 — 99.88% 7,257 / 7,266 99.98% 25,538 / 25,542 — —
EdgeEdge
 99.99% 26,761 / 26,763 100.0% 333 / 333 — 100.0% 941 / 941 98.25% 56 / 57
FirefoxFirefox
 99.99% 7,917 / 7,918 100.0% 1,059 / 1,059 — 0.0% 0 / 24 99.25% 1,063 / 1,071