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Codec: avc1.64040c

3.97% Encoder Support
12,732 of 320,869 sessions supported encoding
99.93% Decoder Support
269,814 of 270,000 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,869 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 13 / 144,229 0.11% 21 / 19,734 — 0.01% 9 / 63,901 0.4% 31 / 7,679
SafariSafari
 — 2.11% 181 / 8,586 1.49% 465 / 31,244 — —
EdgeEdge
 0.0% 1 / 30,784 0.0% 0 / 391 — 0.0% 0 / 998 0.0% 0 / 58
FirefoxFirefox
 96.06% 9,305 / 9,687 100.0% 1,344 / 1,344 — 0.0% 0 / 32 98.08% 1,330 / 1,356

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,000 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,864 / 121,900 99.85% 16,033 / 16,057 — 99.98% 53,906 / 53,916 99.11% 6,495 / 6,553
SafariSafari
 — 99.92% 7,255 / 7,261 99.97% 25,650 / 25,657 — —
EdgeEdge
 100.0% 26,787 / 26,788 100.0% 352 / 352 — 100.0% 916 / 916 98.08% 51 / 52
FirefoxFirefox
 100.0% 7,906 / 7,906 100.0% 1,113 / 1,113 — 0.0% 0 / 24 99.82% 1,102 / 1,104