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Codec: avc1.64040a

3.99% Encoder Support
12,795 of 320,852 sessions supported encoding
99.93% Decoder Support
269,316 of 269,500 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,852 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 9 / 143,833 0.14% 28 / 19,880 — 0.01% 9 / 63,828 0.33% 26 / 7,783
SafariSafari
 — 2.1% 178 / 8,464 1.45% 455 / 31,353 — —
EdgeEdge
 0.0% 1 / 30,990 0.0% 0 / 374 — 0.0% 0 / 981 0.0% 0 / 68
FirefoxFirefox
 95.92% 9,427 / 9,828 100.0% 1,330 / 1,330 — 0.0% 0 / 28 97.91% 1,312 / 1,340

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,500 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,218 / 121,264 99.89% 16,130 / 16,148 — 99.98% 53,930 / 53,940 99.1% 6,485 / 6,544
SafariSafari
 — 99.92% 7,121 / 7,127 99.98% 25,724 / 25,728 — —
EdgeEdge
 100.0% 26,921 / 26,921 100.0% 328 / 328 — 100.0% 902 / 902 98.33% 59 / 60
FirefoxFirefox
 100.0% 7,987 / 7,987 100.0% 1,108 / 1,108 — 0.0% 0 / 17 99.35% 1,078 / 1,085