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Codec: avc1.64003d

84.56% Encoder Support
53,324 of 63,057 sessions supported encoding
85.41% Decoder Support
10,236 of 11,984 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,057 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.25% 27,612 / 27,821 99.79% 4,375 / 4,384 — 96.31% 11,806 / 12,258 97.29% 1,506 / 1,548
SafariSafari
 — 2.21% 37 / 1,675 1.65% 115 / 6,962 — —
EdgeEdge
 99.9% 5,029 / 5,034 100.0% 53 / 53 — 98.92% 92 / 93 100.0% 12 / 12
FirefoxFirefox
 95.79% 2,117 / 2,210 100.0% 250 / 250 — — 99.31% 289 / 291

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,984 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,305 / 5,306 99.85% 686 / 687 — 99.56% 2,249 / 2,259 98.43% 376 / 382
SafariSafari
 — 3.19% 9 / 282 1.85% 26 / 1,408 — —
EdgeEdge
 100.0% 1,031 / 1,031 — — 100.0% 28 / 28 —
FirefoxFirefox
 99.76% 408 / 409 100.0% 41 / 41 — — 100.0% 62 / 62