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Codec: avc1.640428

86.12% Encoder Support
1,848,106 of 2,145,986 sessions supported encoding
99.8% Decoder Support
2,090,536 of 2,094,665 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 2,145,986 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.37% 860,500 / 865,953 99.77% 100,221 / 100,455 — 96.51% 625,766 / 648,422 96.22% 42,521 / 44,191
SafariSafari
 — 1.51% 724 / 47,847 1.8% 3,935 / 218,856 — —
EdgeEdge
 99.85% 143,169 / 143,387 100.0% 1,472 / 1,472 — 98.41% 4,200 / 4,268 98.22% 662 / 674
FirefoxFirefox
 95.89% 51,148 / 53,339 99.96% 7,441 / 7,444 — 0.99% 1 / 101 98.67% 5,991 / 6,072

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,094,665 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 843,075 / 843,294 99.81% 96,568 / 96,753 — 99.65% 636,207 / 638,443 98.29% 42,256 / 42,990
SafariSafari
 — 99.83% 46,406 / 46,483 99.98% 213,219 / 213,268 — —
EdgeEdge
 100.0% 139,396 / 139,400 100.0% 1,435 / 1,435 — 100.0% 4,195 / 4,195 98.36% 659 / 670
FirefoxFirefox
 99.96% 51,565 / 51,588 99.94% 7,182 / 7,186 — 1.08% 1 / 93 98.38% 5,724 / 5,818