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Codec: avc1.4d042a

84.58% Encoder Support
53,477 of 63,225 sessions supported encoding
99.92% Decoder Support
12,064 of 12,074 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,225 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.17% 27,550 / 27,780 99.91% 4,336 / 4,340 — 97.31% 11,862 / 12,190 98.15% 1,591 / 1,621
SafariSafari
 — 2.31% 38 / 1,647 1.6% 113 / 7,066 — —
EdgeEdge
 99.94% 5,094 / 5,097 100.0% 59 / 59 — 99.12% 112 / 113 90.0% 9 / 10
FirefoxFirefox
 94.88% 2,095 / 2,208 100.0% 280 / 280 — 0.0% 0 / 11 99.01% 299 / 302

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,074 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.92% 5,303 / 5,307 99.72% 703 / 705 — 100.0% 2,257 / 2,257 99.51% 409 / 411
SafariSafari
 — 100.0% 286 / 286 100.0% 1,394 / 1,394 — —
EdgeEdge
 100.0% 1,045 / 1,045 100.0% 13 / 13 — 100.0% 33 / 33 —
FirefoxFirefox
 100.0% 437 / 437 100.0% 41 / 41 — — 100.0% 62 / 62