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Codec: avc1.420420

87.34% Encoder Support
1,877,557 of 2,149,675 sessions supported encoding
99.8% Decoder Support
2,094,342 of 2,098,458 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 2,149,675 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,523 / 868,128 99.83% 100,244 / 100,417 — 99.5% 646,764 / 650,005 98.09% 42,796 / 43,628
SafariSafari
 — 1.44% 695 / 48,328 1.86% 4,065 / 218,208 — —
EdgeEdge
 99.99% 143,986 / 143,995 99.93% 1,505 / 1,506 — 99.85% 4,124 / 4,130 98.85% 685 / 693
FirefoxFirefox
 95.88% 51,352 / 53,561 99.96% 7,385 / 7,388 — 0.9% 1 / 111 98.72% 5,925 / 6,002

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,458 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,382 / 845,565 99.82% 96,575 / 96,749 — 99.64% 637,632 / 639,927 98.34% 41,706 / 42,412
SafariSafari
 — 99.85% 46,879 / 46,950 99.97% 212,587 / 212,643 — —
EdgeEdge
 99.99% 140,044 / 140,053 100.0% 1,471 / 1,471 — 100.0% 4,055 / 4,055 99.13% 680 / 686
FirefoxFirefox
 99.97% 51,765 / 51,781 99.96% 7,168 / 7,171 — 1.01% 1 / 99 98.39% 5,672 / 5,765