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Codec: avc1.64040d

3.93% Encoder Support
12,579 of 320,076 sessions supported encoding
99.93% Decoder Support
268,899 of 269,080 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,076 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 / 143,731 0.12% 23 / 19,785 — 0.01% 7 / 63,586 0.27% 21 / 7,736
SafariSafari
 — 1.93% 166 / 8,615 1.37% 426 / 31,164 — —
EdgeEdge
 0.0% 1 / 30,920 0.0% 0 / 375 — 0.0% 0 / 965 0.0% 0 / 60
FirefoxFirefox
 95.91% 9,335 / 9,733 100.0% 1,309 / 1,309 — 0.0% 0 / 33 98.36% 1,257 / 1,278

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,080 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,184 / 121,211 99.9% 16,120 / 16,136 — 99.99% 53,745 / 53,752 98.85% 6,429 / 6,504
SafariSafari
 — 99.96% 7,188 / 7,191 99.98% 25,582 / 25,587 — —
EdgeEdge
 100.0% 26,941 / 26,942 100.0% 329 / 329 — 100.0% 888 / 888 98.25% 56 / 57
FirefoxFirefox
 100.0% 7,949 / 7,949 100.0% 1,072 / 1,072 — 0.0% 0 / 24 99.24% 1,044 / 1,052