← Back to Codec Support Table

Codec: avc1.640420

86.2% Encoder Support
276,376 of 320,614 sessions supported encoding
99.93% Decoder Support
269,355 of 269,550 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,614 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 142,955 / 144,016 99.81% 19,765 / 19,803 — 96.15% 60,831 / 63,267 97.44% 7,586 / 7,785
SafariSafari
 — 1.91% 164 / 8,601 1.5% 470 / 31,272 — —
EdgeEdge
 99.8% 31,182 / 31,245 100.0% 343 / 343 — 98.07% 964 / 983 98.57% 69 / 70
FirefoxFirefox
 96.08% 9,382 / 9,765 100.0% 1,301 / 1,301 — 0.0% 0 / 40 98.68% 1,269 / 1,286

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,550 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,485 / 121,521 99.82% 16,143 / 16,172 — 99.99% 53,423 / 53,430 99.0% 6,507 / 6,573
SafariSafari
 — 99.89% 7,190 / 7,198 99.99% 25,608 / 25,610 — —
EdgeEdge
 100.0% 27,210 / 27,210 100.0% 304 / 304 — 100.0% 901 / 901 98.48% 65 / 66
FirefoxFirefox
 100.0% 7,984 / 7,984 100.0% 1,087 / 1,087 — 0.0% 0 / 28 99.43% 1,051 / 1,057