← Back to Codec Support Table

Codec: avc1.4d103d

86.48% Encoder Support
277,399 of 320,773 sessions supported encoding
87.69% Decoder Support
236,487 of 269,671 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,773 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 143,263 / 144,275 99.78% 19,688 / 19,732 — 97.54% 62,102 / 63,671 97.49% 7,602 / 7,798
SafariSafari
 — 1.91% 162 / 8,460 1.41% 444 / 31,468 — —
EdgeEdge
 99.82% 30,813 / 30,870 100.0% 369 / 369 — 99.27% 953 / 960 96.61% 57 / 59
FirefoxFirefox
 96.08% 9,286 / 9,665 100.0% 1,251 / 1,251 — 0.0% 0 / 30 98.8% 1,314 / 1,330

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,671 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,668 / 121,728 99.77% 16,019 / 16,056 — 99.85% 53,632 / 53,714 98.35% 6,503 / 6,612
SafariSafari
 — 1.86% 132 / 7,110 1.43% 371 / 25,888 — —
EdgeEdge
 99.97% 26,830 / 26,838 100.0% 331 / 331 — 100.0% 886 / 886 98.15% 53 / 54
FirefoxFirefox
 99.96% 7,883 / 7,886 100.0% 1,018 / 1,018 — 0.0% 0 / 22 99.01% 1,096 / 1,107