← Back to Codec Support Table

Codec: avc1.4d1434

86.56% Encoder Support
277,396 of 320,460 sessions supported encoding
99.94% Decoder Support
269,577 of 269,739 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,460 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.32% 143,139 / 144,120 99.89% 19,825 / 19,847 — 97.58% 61,770 / 63,302 98.02% 7,529 / 7,681
SafariSafari
 — 2.17% 187 / 8,630 1.61% 504 / 31,260 — —
EdgeEdge
 99.8% 30,941 / 31,003 100.0% 337 / 337 — 98.76% 952 / 964 96.08% 49 / 51
FirefoxFirefox
 96.06% 9,369 / 9,753 100.0% 1,348 / 1,348 — 0.0% 0 / 31 98.76% 1,349 / 1,366

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,739 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,833 / 121,860 99.91% 16,165 / 16,179 — 99.99% 53,434 / 53,442 99.1% 6,411 / 6,469
SafariSafari
 — 99.93% 7,239 / 7,244 99.97% 25,711 / 25,718 — —
EdgeEdge
 100.0% 27,042 / 27,043 100.0% 304 / 304 — 100.0% 889 / 889 95.24% 40 / 42
FirefoxFirefox
 99.99% 7,921 / 7,922 100.0% 1,105 / 1,105 — 0.0% 0 / 19 99.01% 1,099 / 1,110