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Codec: avc1.640428

84.44% Encoder Support
53,399 of 63,238 sessions supported encoding
99.92% Decoder Support
11,925 of 11,934 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,238 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.17% 27,629 / 27,860 99.91% 4,384 / 4,388 — 96.24% 11,748 / 12,207 97.59% 1,581 / 1,620
SafariSafari
 — 2.35% 38 / 1,620 1.49% 104 / 6,998 — —
EdgeEdge
 99.82% 4,995 / 5,004 100.0% 45 / 45 — 97.22% 105 / 108 —
FirefoxFirefox
 95.83% 2,114 / 2,206 100.0% 298 / 298 — — 99.04% 308 / 311

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,934 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,202 / 5,203 99.71% 684 / 686 — 100.0% 2,228 / 2,228 98.81% 414 / 419
SafariSafari
 — 100.0% 259 / 259 100.0% 1,422 / 1,422 — —
EdgeEdge
 100.0% 1,017 / 1,017 — — 100.0% 35 / 35 —
FirefoxFirefox
 100.0% 455 / 455 100.0% 40 / 40 — — 100.0% 57 / 57