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Codec: avc1.420420

85.47% Encoder Support
53,933 of 63,104 sessions supported encoding
99.93% Decoder Support
11,901 of 11,909 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,104 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.77% 27,761 / 27,825 99.98% 4,348 / 4,349 — 99.74% 12,266 / 12,298 98.9% 1,615 / 1,633
SafariSafari
 — 2.42% 40 / 1,655 1.86% 130 / 6,975 — —
EdgeEdge
 100.0% 4,946 / 4,946 97.83% 45 / 46 — 100.0% 111 / 111 —
FirefoxFirefox
 94.89% 2,080 / 2,192 100.0% 266 / 266 — 0.0% 0 / 13 98.21% 274 / 279

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,909 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,262 / 5,265 100.0% 681 / 681 — 100.0% 2,220 / 2,220 99.04% 413 / 417
SafariSafari
 — 100.0% 282 / 282 100.0% 1,424 / 1,424 — —
EdgeEdge
 100.0% 1,004 / 1,004 100.0% 11 / 11 — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 412 / 412 100.0% 49 / 49 — — 100.0% 42 / 42