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Codec: avc1.420028

99.63% Encoder Support
2,141,704 of 2,149,568 sessions supported encoding
99.8% Decoder Support
2,094,529 of 2,098,664 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 2,149,568 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,101 / 867,706 99.82% 100,689 / 100,869 — 99.5% 646,494 / 649,747 98.01% 43,146 / 44,024
SafariSafari
 — 99.76% 48,038 / 48,152 99.98% 217,997 / 218,046 — —
EdgeEdge
 100.0% 143,838 / 143,845 100.0% 1,487 / 1,487 — 99.91% 4,283 / 4,287 98.84% 684 / 692
FirefoxFirefox
 95.93% 51,610 / 53,802 99.99% 7,445 / 7,446 — 0.94% 1 / 106 99.05% 5,865 / 5,921

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,664 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,054 / 845,241 99.82% 97,072 / 97,249 — 99.64% 637,534 / 639,809 98.28% 42,054 / 42,791
SafariSafari
 — 99.83% 46,703 / 46,784 99.98% 212,401 / 212,451 — —
EdgeEdge
 99.99% 139,830 / 139,837 100.0% 1,447 / 1,447 — 100.0% 4,219 / 4,219 98.98% 680 / 687
FirefoxFirefox
 99.96% 52,076 / 52,095 99.96% 7,215 / 7,218 — 1.02% 1 / 98 98.42% 5,600 / 5,690