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Codec: avc1.4d003c

86.59% Encoder Support
278,376 of 321,483 sessions supported encoding
87.81% Decoder Support
237,255 of 270,191 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,483 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 144,145 / 145,175 99.78% 19,607 / 19,650 — 97.59% 61,953 / 63,484 97.61% 7,566 / 7,751
SafariSafari
 — 2.1% 179 / 8,537 1.37% 427 / 31,162 — —
EdgeEdge
 99.76% 31,152 / 31,227 100.0% 398 / 398 — 98.89% 976 / 987 98.53% 67 / 68
FirefoxFirefox
 96.11% 9,275 / 9,650 100.0% 1,297 / 1,297 — 0.0% 0 / 29 98.8% 1,240 / 1,255

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,191 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 122,411 / 122,482 99.74% 15,973 / 16,014 — 99.83% 53,427 / 53,519 98.5% 6,433 / 6,531
SafariSafari
 — 2.13% 153 / 7,180 1.38% 354 / 25,595 — —
EdgeEdge
 99.96% 27,139 / 27,149 100.0% 359 / 359 — 100.0% 898 / 898 98.25% 56 / 57
FirefoxFirefox
 99.97% 7,887 / 7,889 99.91% 1,072 / 1,073 — 0.0% 0 / 22 98.94% 1,024 / 1,035