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Codec: avc1.4d043c

86.44% Encoder Support
1,857,554 of 2,148,975 sessions supported encoding
87.45% Decoder Support
1,834,500 of 2,097,804 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 2,148,975 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,619 / 867,857 99.64% 100,051 / 100,408 — 97.38% 633,713 / 650,793 96.34% 42,113 / 43,712
SafariSafari
 — 1.52% 731 / 48,115 1.89% 4,133 / 218,121 — —
EdgeEdge
 99.84% 143,179 / 143,414 99.93% 1,482 / 1,483 — 99.24% 4,192 / 4,224 98.49% 653 / 663
FirefoxFirefox
 95.77% 51,052 / 53,305 100.0% 7,315 / 7,315 — 0.0% 0 / 110 98.62% 5,945 / 6,028

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,804 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 845,070 / 845,462 99.64% 96,404 / 96,749 — 99.37% 636,654 / 640,721 97.36% 41,393 / 42,517
SafariSafari
 — 1.57% 731 / 46,697 1.9% 4,031 / 212,513 — —
EdgeEdge
 99.97% 139,380 / 139,415 99.93% 1,436 / 1,437 — 100.0% 4,145 / 4,145 98.78% 649 / 657
FirefoxFirefox
 99.95% 51,532 / 51,556 99.84% 7,045 / 7,056 — 0.0% 0 / 97 98.44% 5,687 / 5,777