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Codec: avc1.4d0028

98.71% Encoder Support
2,120,471 of 2,148,104 sessions supported encoding
99.8% Decoder Support
2,093,023 of 2,097,159 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,104 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,658 / 866,905 99.74% 100,646 / 100,905 — 97.35% 630,887 / 648,082 96.51% 42,189 / 43,714
SafariSafari
 — 99.79% 48,014 / 48,113 99.98% 219,244 / 219,295 — —
EdgeEdge
 99.84% 144,019 / 144,254 100.0% 1,459 / 1,459 — 99.16% 4,235 / 4,271 98.81% 664 / 672
FirefoxFirefox
 95.74% 51,313 / 53,594 99.99% 7,373 / 7,374 — 0.0% 0 / 111 98.76% 5,893 / 5,967

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,159 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 843,979 / 844,192 99.79% 97,047 / 97,248 — 99.65% 635,986 / 638,244 98.18% 41,750 / 42,523
SafariSafari
 — 99.88% 46,689 / 46,744 99.98% 213,750 / 213,801 — —
EdgeEdge
 100.0% 140,361 / 140,367 100.0% 1,421 / 1,421 — 100.0% 4,195 / 4,195 98.8% 658 / 666
FirefoxFirefox
 99.97% 51,762 / 51,779 99.96% 7,161 / 7,164 — 0.0% 0 / 99 98.66% 5,650 / 5,727