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Codec: avc1.641428

84.33% Encoder Support
53,029 of 62,880 sessions supported encoding
99.95% Decoder Support
11,854 of 11,860 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 62,880 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.1% 27,423 / 27,671 99.88% 4,321 / 4,326 — 96.08% 11,679 / 12,155 97.65% 1,499 / 1,535
SafariSafari
 — 2.92% 49 / 1,678 1.52% 106 / 6,987 — —
EdgeEdge
 99.78% 5,038 / 5,049 98.18% 54 / 55 — 100.0% 110 / 110 93.33% 14 / 15
FirefoxFirefox
 95.7% 2,094 / 2,188 100.0% 302 / 302 — 0.0% 0 / 11 99.03% 307 / 310

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,860 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,216 / 5,218 100.0% 648 / 648 — 100.0% 2,292 / 2,292 99.45% 359 / 361
SafariSafari
 — 100.0% 269 / 269 100.0% 1,400 / 1,400 — —
EdgeEdge
 100.0% 1,027 / 1,027 — — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 399 / 399 100.0% 50 / 50 — — 100.0% 58 / 58