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Codec: avc1.640033

98.68% Encoder Support
316,245 of 320,462 sessions supported encoding
99.93% Decoder Support
269,306 of 269,490 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,462 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.25% 142,776 / 143,852 99.86% 19,731 / 19,758 — 96.28% 61,078 / 63,436 97.34% 7,618 / 7,826
SafariSafari
 — 99.94% 8,427 / 8,432 99.99% 31,366 / 31,368 — —
EdgeEdge
 99.79% 31,080 / 31,145 100.0% 356 / 356 — 97.95% 956 / 976 100.0% 65 / 65
FirefoxFirefox
 96.21% 9,363 / 9,732 100.0% 1,409 / 1,409 — 0.0% 0 / 35 98.18% 1,242 / 1,265

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,490 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,290 / 121,326 99.88% 16,080 / 16,099 — 100.0% 53,565 / 53,567 98.96% 6,567 / 6,636
SafariSafari
 — 99.93% 7,107 / 7,112 99.99% 25,834 / 25,836 — —
EdgeEdge
 100.0% 27,079 / 27,079 100.0% 322 / 322 — 100.0% 900 / 900 100.0% 57 / 57
FirefoxFirefox
 100.0% 7,956 / 7,956 100.0% 1,161 / 1,161 — 0.0% 0 / 25 98.63% 1,011 / 1,025