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Codec: avc1.4d1028

98.82% Encoder Support
62,083 of 62,822 sessions supported encoding
99.92% Decoder Support
11,850 of 11,859 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 62,822 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,370 / 27,596 99.91% 4,363 / 4,367 — 97.27% 11,774 / 12,104 98.24% 1,565 / 1,593
SafariSafari
 — 99.94% 1,643 / 1,644 100.0% 7,039 / 7,039 — —
EdgeEdge
 99.78% 4,979 / 4,990 100.0% 62 / 62 — 99.08% 108 / 109 —
FirefoxFirefox
 95.07% 2,100 / 2,209 100.0% 285 / 285 — 0.0% 0 / 19 98.99% 295 / 298

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,859 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,220 / 5,221 99.85% 678 / 679 — 100.0% 2,203 / 2,203 98.99% 391 / 395
SafariSafari
 — 100.0% 253 / 253 100.0% 1,442 / 1,442 — —
EdgeEdge
 100.0% 1,010 / 1,010 100.0% 13 / 13 — 100.0% 29 / 29 —
FirefoxFirefox
 100.0% 420 / 420 100.0% 56 / 56 — — 100.0% 61 / 61