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Codec: avc1.4d0428

84.55% Encoder Support
53,074 of 62,775 sessions supported encoding
99.92% Decoder Support
11,862 of 11,872 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 62,775 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.09% 27,387 / 27,639 99.95% 4,300 / 4,302 — 97.58% 11,793 / 12,086 97.7% 1,575 / 1,612
SafariSafari
 — 1.76% 29 / 1,648 1.61% 113 / 7,011 — —
EdgeEdge
 99.74% 4,990 / 5,003 100.0% 49 / 49 — 97.96% 96 / 98 —
FirefoxFirefox
 94.59% 2,135 / 2,257 100.0% 277 / 277 — — 99.28% 277 / 279

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,872 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,264 / 5,267 100.0% 650 / 650 — 100.0% 2,150 / 2,150 98.55% 409 / 415
SafariSafari
 — 100.0% 271 / 271 100.0% 1,432 / 1,432 — —
EdgeEdge
 100.0% 1,020 / 1,020 100.0% 12 / 12 — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 416 / 416 100.0% 53 / 53 — — 100.0% 60 / 60