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Codec: avc1.420020

99.72% Encoder Support
319,620 of 320,520 sessions supported encoding
99.94% Decoder Support
269,412 of 269,587 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 320,520 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.85% 143,825 / 144,045 99.91% 19,701 / 19,718 — 99.8% 63,692 / 63,820 98.93% 7,786 / 7,870
SafariSafari
 — 99.94% 8,551 / 8,556 100.0% 31,051 / 31,052 — —
EdgeEdge
 100.0% 31,004 / 31,004 100.0% 349 / 349 — 99.8% 1,003 / 1,005 98.39% 61 / 62
FirefoxFirefox
 96.09% 9,195 / 9,569 100.0% 1,348 / 1,348 — 0.0% 0 / 36 98.82% 1,251 / 1,266

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,587 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,604 / 121,643 99.89% 16,108 / 16,125 — 99.99% 53,944 / 53,947 99.08% 6,597 / 6,658
SafariSafari
 — 99.94% 7,178 / 7,182 100.0% 25,411 / 25,412 — —
EdgeEdge
 100.0% 26,991 / 26,991 100.0% 306 / 306 — 100.0% 925 / 925 98.21% 55 / 56
FirefoxFirefox
 99.99% 7,793 / 7,794 100.0% 1,107 / 1,107 — 0.0% 0 / 26 99.11% 1,000 / 1,009