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Codec: avc1.420c2a

87.34% Encoder Support
1,877,042 of 2,149,223 sessions supported encoding
99.81% Decoder Support
2,093,945 of 2,098,025 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,223 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,677 / 868,291 99.82% 100,284 / 100,461 — 99.5% 646,239 / 649,474 98.11% 42,589 / 43,409
SafariSafari
 — 1.58% 758 / 48,109 1.88% 4,115 / 218,630 — —
EdgeEdge
 99.99% 143,749 / 143,759 99.86% 1,458 / 1,460 — 99.78% 4,105 / 4,114 98.87% 701 / 709
FirefoxFirefox
 95.92% 51,475 / 53,663 99.96% 7,533 / 7,536 — 0.0% 0 / 102 98.62% 5,880 / 5,962

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,025 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,644 / 845,819 99.82% 96,599 / 96,778 — 99.64% 637,248 / 639,520 98.4% 41,531 / 42,207
SafariSafari
 — 99.84% 46,668 / 46,744 99.97% 212,915 / 212,979 — —
EdgeEdge
 99.99% 139,737 / 139,746 100.0% 1,414 / 1,414 — 100.0% 4,038 / 4,038 99.15% 697 / 703
FirefoxFirefox
 99.97% 51,839 / 51,856 99.95% 7,277 / 7,281 — 0.0% 0 / 96 98.36% 5,634 / 5,728