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Codec: avc1.640828

86.23% Encoder Support
276,720 of 320,921 sessions supported encoding
99.93% Decoder Support
269,986 of 270,181 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 320,921 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.23% 143,217 / 144,325 99.88% 19,606 / 19,629 — 96.3% 61,270 / 63,622 97.23% 7,536 / 7,751
SafariSafari
 — 1.85% 159 / 8,595 1.52% 475 / 31,343 — —
EdgeEdge
 99.81% 30,971 / 31,030 99.73% 375 / 376 — 98.48% 974 / 989 100.0% 62 / 62
FirefoxFirefox
 96.35% 9,417 / 9,774 100.0% 1,297 / 1,297 — 0.0% 0 / 37 98.44% 1,264 / 1,284

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,181 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,863 / 121,901 99.91% 15,986 / 16,000 — 99.99% 53,779 / 53,786 98.89% 6,491 / 6,564
SafariSafari
 — 99.88% 7,271 / 7,280 99.99% 25,717 / 25,719 — —
EdgeEdge
 100.0% 27,084 / 27,084 100.0% 338 / 338 — 100.0% 911 / 911 100.0% 58 / 58
FirefoxFirefox
 99.98% 8,005 / 8,007 100.0% 1,062 / 1,062 — 0.0% 0 / 27 99.24% 1,041 / 1,049