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Codec: avc1.4d040a

3.24% Encoder Support
69,777 of 2,150,430 sessions supported encoding
99.8% Decoder Support
2,095,277 of 2,099,458 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,150,430 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 78 / 868,489 0.1% 101 / 100,377 — 0.03% 191 / 650,097 0.33% 145 / 44,103
SafariSafari
 — 1.47% 709 / 48,191 1.79% 3,917 / 218,592 — —
EdgeEdge
 0.0% 4 / 143,723 0.0% 0 / 1,457 — 0.0% 0 / 4,275 0.15% 1 / 675
FirefoxFirefox
 95.92% 51,381 / 53,565 99.91% 7,373 / 7,380 — 0.0% 0 / 116 97.99% 5,836 / 5,956

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,458 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,770 / 845,966 99.79% 96,531 / 96,732 — 99.65% 637,906 / 640,176 98.33% 42,191 / 42,906
SafariSafari
 — 99.8% 46,746 / 46,839 99.98% 212,956 / 213,008 — —
EdgeEdge
 99.99% 139,714 / 139,721 100.0% 1,416 / 1,416 — 100.0% 4,203 / 4,203 99.1% 664 / 670
FirefoxFirefox
 99.98% 51,778 / 51,789 99.99% 7,173 / 7,174 — 0.0% 0 / 109 98.09% 5,612 / 5,721