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Codec: avc1.64040b

3.95% Encoder Support
12,651 of 319,921 sessions supported encoding
99.94% Decoder Support
268,865 of 269,035 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,921 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 / 143,732 0.12% 24 / 19,715 — 0.02% 12 / 63,536 0.32% 25 / 7,781
SafariSafari
 — 1.97% 167 / 8,464 1.48% 459 / 31,108 — —
EdgeEdge
 0.01% 2 / 31,017 0.0% 0 / 374 — 0.0% 0 / 988 0.0% 0 / 63
FirefoxFirefox
 96.0% 9,341 / 9,730 99.92% 1,316 / 1,317 — 0.0% 0 / 32 98.45% 1,270 / 1,290

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,035 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,392 / 121,420 99.91% 15,985 / 15,999 — 99.99% 53,565 / 53,573 99.03% 6,517 / 6,581
SafariSafari
 — 99.9% 7,136 / 7,143 99.99% 25,521 / 25,524 — —
EdgeEdge
 100.0% 27,025 / 27,026 100.0% 331 / 331 — 100.0% 902 / 902 98.25% 56 / 57
FirefoxFirefox
 100.0% 7,921 / 7,921 100.0% 1,095 / 1,095 — 0.0% 0 / 27 99.62% 1,053 / 1,057