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Codec: avc1.420828

85.28% Encoder Support
53,440 of 62,667 sessions supported encoding
99.94% Decoder Support
11,840 of 11,847 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,667 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.76% 27,411 / 27,477 99.98% 4,315 / 4,316 — 99.74% 12,169 / 12,201 98.78% 1,542 / 1,561
SafariSafari
 — 2.38% 41 / 1,723 1.7% 119 / 7,014 — —
EdgeEdge
 100.0% 4,999 / 4,999 100.0% 56 / 56 — 100.0% 103 / 103 —
FirefoxFirefox
 95.84% 2,073 / 2,163 100.0% 280 / 280 — 0.0% 0 / 11 98.94% 281 / 284

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,847 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,126 / 5,127 100.0% 662 / 662 — 100.0% 2,287 / 2,287 99.21% 375 / 378
SafariSafari
 — 100.0% 290 / 290 100.0% 1,414 / 1,414 — —
EdgeEdge
 100.0% 1,037 / 1,037 — — 100.0% 26 / 26 —
FirefoxFirefox
 100.0% 419 / 419 100.0% 54 / 54 — — 100.0% 67 / 67