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Codec: avc1.42003d

85.41% Encoder Support
53,595 of 62,748 sessions supported encoding
85.25% Decoder Support
10,084 of 11,829 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,748 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.71% 27,689 / 27,769 99.77% 4,273 / 4,283 — 99.69% 12,011 / 12,048 97.81% 1,606 / 1,642
SafariSafari
 — 2.25% 37 / 1,642 1.51% 105 / 6,950 — —
EdgeEdge
 100.0% 5,000 / 5,000 98.04% 50 / 51 — 100.0% 102 / 102 90.91% 10 / 11
FirefoxFirefox
 95.37% 2,101 / 2,203 100.0% 291 / 291 — 0.0% 0 / 12 99.31% 288 / 290

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,829 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,148 / 5,150 99.57% 689 / 692 — 99.73% 2,250 / 2,256 99.5% 397 / 399
SafariSafari
 — 2.95% 8 / 271 2.02% 29 / 1,435 — —
EdgeEdge
 100.0% 1,011 / 1,011 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 390 / 390 100.0% 47 / 47 — — 100.0% 70 / 70