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Codec: avc1.420029

99.63% Encoder Support
63,010 of 63,247 sessions supported encoding
99.93% Decoder Support
11,935 of 11,943 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,247 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.77% 27,766 / 27,830 99.98% 4,326 / 4,327 — 99.77% 12,154 / 12,182 98.5% 1,576 / 1,600
SafariSafari
 — 99.94% 1,645 / 1,646 100.0% 7,059 / 7,059 — —
EdgeEdge
 100.0% 5,160 / 5,160 100.0% 41 / 41 — 100.0% 97 / 97 100.0% 10 / 10
FirefoxFirefox
 95.44% 2,112 / 2,213 100.0% 280 / 280 — 0.0% 0 / 10 98.72% 308 / 312

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,943 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 99.85% 680 / 681 — 100.0% 2,296 / 2,296 99.19% 369 / 372
SafariSafari
 — 100.0% 267 / 267 100.0% 1,426 / 1,426 — —
EdgeEdge
 100.0% 1,064 / 1,064 — — 100.0% 27 / 27 —
FirefoxFirefox
 100.0% 424 / 424 100.0% 51 / 51 — — 100.0% 70 / 70