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Codec: avc1.420c14

3.37% Encoder Support
72,318 of 2,148,310 sessions supported encoding
99.8% Decoder Support
2,093,007 of 2,097,144 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 2 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,310 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 244 / 867,327 0.17% 171 / 100,348 — 0.31% 2,027 / 649,312 0.88% 384 / 43,728
SafariSafari
 — 1.48% 715 / 48,259 1.83% 4,006 / 218,528 — —
EdgeEdge
 0.02% 30 / 144,034 0.0% 0 / 1,415 — 0.0% 0 / 4,346 0.3% 2 / 664
FirefoxFirefox
 95.99% 51,404 / 53,553 99.92% 7,341 / 7,347 — 0.0% 0 / 126 98.11% 5,810 / 5,922

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,144 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,717 / 844,894 99.8% 96,518 / 96,709 — 99.64% 636,975 / 639,254 98.3% 41,788 / 42,511
SafariSafari
 — 99.8% 46,744 / 46,838 99.98% 212,899 / 212,943 — —
EdgeEdge
 99.99% 139,972 / 139,981 100.0% 1,375 / 1,375 — 100.0% 4,270 / 4,270 98.78% 649 / 657
FirefoxFirefox
 99.98% 51,800 / 51,811 99.97% 7,117 / 7,119 — 0.85% 1 / 118 98.52% 5,597 / 5,681