← Back to Codec Support Table

Codec: avc1.4d103c

84.7% Encoder Support
53,441 of 63,097 sessions supported encoding
85.34% Decoder Support
10,208 of 11,962 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 63,097 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,585 / 27,812 99.73% 4,426 / 4,438 — 97.49% 11,827 / 12,131 97.62% 1,600 / 1,639
SafariSafari
 — 1.73% 28 / 1,617 1.65% 115 / 6,963 — —
EdgeEdge
 99.78% 4,921 / 4,932 97.87% 46 / 47 — 97.5% 117 / 120 100.0% 10 / 10
FirefoxFirefox
 94.66% 2,146 / 2,267 100.0% 284 / 284 — 0.0% 0 / 12 98.98% 292 / 295

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,962 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,277 / 5,279 99.86% 708 / 709 — 99.82% 2,180 / 2,184 98.73% 389 / 394
SafariSafari
 — 2.49% 7 / 281 1.84% 26 / 1,416 — —
EdgeEdge
 100.0% 1,032 / 1,032 — — 100.0% 39 / 39 —
FirefoxFirefox
 100.0% 424 / 424 100.0% 48 / 48 — — 100.0% 54 / 54