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Codec: avc1.4d1420

86.5% Encoder Support
277,787 of 321,152 sessions supported encoding
99.93% Decoder Support
269,742 of 269,919 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,152 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,386 / 144,426 99.86% 19,555 / 19,583 — 97.66% 62,284 / 63,777 97.83% 7,540 / 7,707
SafariSafari
 — 1.9% 165 / 8,662 1.61% 505 / 31,440 — —
EdgeEdge
 99.81% 30,943 / 31,003 100.0% 365 / 365 — 99.49% 975 / 980 96.83% 61 / 63
FirefoxFirefox
 96.08% 9,312 / 9,692 100.0% 1,362 / 1,362 — 0.0% 0 / 38 98.81% 1,246 / 1,261

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,919 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,821 / 121,854 99.89% 15,993 / 16,011 — 99.99% 53,763 / 53,771 99.07% 6,407 / 6,467
SafariSafari
 — 99.93% 7,276 / 7,281 99.99% 25,780 / 25,783 — —
EdgeEdge
 100.0% 26,965 / 26,966 100.0% 322 / 322 — 100.0% 910 / 910 98.11% 52 / 53
FirefoxFirefox
 100.0% 7,939 / 7,939 100.0% 1,119 / 1,119 — 0.0% 0 / 30 99.32% 1,030 / 1,037