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Codec: avc1.420820

85.51% Encoder Support
53,966 of 63,112 sessions supported encoding
99.93% Decoder Support
11,816 of 11,824 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 63,112 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.79% 27,666 / 27,725 99.98% 4,434 / 4,435 — 99.77% 12,271 / 12,299 99.01% 1,599 / 1,615
SafariSafari
 — 2.23% 36 / 1,617 1.49% 104 / 6,978 — —
EdgeEdge
 100.0% 4,985 / 4,985 100.0% 56 / 56 — 100.0% 105 / 105 —
FirefoxFirefox
 95.65% 2,111 / 2,207 100.0% 269 / 269 — 0.0% 0 / 14 99.65% 281 / 282

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,824 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,180 / 5,182 100.0% 706 / 706 — 100.0% 2,225 / 2,225 99.23% 386 / 389
SafariSafari
 — 100.0% 283 / 283 100.0% 1,380 / 1,380 — —
EdgeEdge
 100.0% 1,020 / 1,020 — — 100.0% 33 / 33 —
FirefoxFirefox
 100.0% 418 / 418 100.0% 43 / 43 — — 100.0% 47 / 47