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Codec: avc1.4d040a

3.87% Encoder Support
12,417 of 320,794 sessions supported encoding
99.93% Decoder Support
269,626 of 269,822 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 320,794 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 15 / 144,517 0.12% 24 / 19,628 — 0.02% 10 / 63,678 0.2% 16 / 7,833
SafariSafari
 — 1.83% 157 / 8,568 1.32% 409 / 31,035 — —
EdgeEdge
 0.0% 0 / 31,116 0.0% 0 / 374 — 0.0% 0 / 969 0.0% 0 / 67
FirefoxFirefox
 95.98% 9,279 / 9,668 99.92% 1,304 / 1,305 — 0.0% 0 / 27 97.94% 1,190 / 1,215

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,822 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,957 / 121,994 99.86% 15,961 / 15,983 — 99.99% 53,749 / 53,757 99.01% 6,570 / 6,636
SafariSafari
 — 99.86% 7,206 / 7,216 99.98% 25,445 / 25,451 — —
EdgeEdge
 100.0% 27,113 / 27,114 100.0% 333 / 333 — 100.0% 897 / 897 98.39% 61 / 62
FirefoxFirefox
 99.99% 7,891 / 7,892 100.0% 1,099 / 1,099 — 0.0% 0 / 20 99.39% 974 / 980