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Codec: avc1.4d1020

98.98% Encoder Support
317,895 of 321,176 sessions supported encoding
99.93% Decoder Support
270,117 of 270,307 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,176 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 143,279 / 144,304 99.86% 19,773 / 19,800 — 97.61% 62,047 / 63,564 97.94% 7,511 / 7,669
SafariSafari
 — 99.94% 8,656 / 8,661 99.99% 31,328 / 31,332 — —
EdgeEdge
 99.83% 31,234 / 31,288 100.0% 375 / 375 — 98.71% 918 / 930 100.0% 63 / 63
FirefoxFirefox
 95.8% 9,241 / 9,646 100.0% 1,331 / 1,331 — 0.0% 0 / 29 98.82% 1,335 / 1,351

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,307 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,914 / 121,947 99.86% 16,122 / 16,144 — 99.98% 53,528 / 53,539 98.97% 6,434 / 6,501
SafariSafari
 — 99.93% 7,281 / 7,286 99.99% 25,830 / 25,833 — —
EdgeEdge
 100.0% 27,289 / 27,289 100.0% 330 / 330 — 100.0% 857 / 857 100.0% 57 / 57
FirefoxFirefox
 99.99% 7,866 / 7,867 100.0% 1,077 / 1,077 — 0.0% 0 / 24 99.3% 1,131 / 1,139