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Codec: avc1.4d1032

98.98% Encoder Support
316,587 of 319,837 sessions supported encoding
99.94% Decoder Support
268,569 of 268,722 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,837 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,004 / 144,046 99.92% 19,683 / 19,698 — 97.63% 62,002 / 63,509 98.19% 7,556 / 7,695
SafariSafari
 — 99.94% 8,488 / 8,493 99.99% 31,111 / 31,113 — —
EdgeEdge
 99.78% 30,764 / 30,831 100.0% 336 / 336 — 98.62% 930 / 943 98.15% 53 / 54
FirefoxFirefox
 95.97% 9,311 / 9,702 100.0% 1,337 / 1,337 — 0.0% 0 / 25 98.74% 1,254 / 1,270

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,722 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,495 / 121,528 99.94% 16,102 / 16,112 — 99.99% 53,445 / 53,450 99.14% 6,428 / 6,484
SafariSafari
 — 99.93% 7,090 / 7,095 99.99% 25,542 / 25,544 — —
EdgeEdge
 100.0% 26,817 / 26,818 100.0% 299 / 299 — 100.0% 853 / 853 98.0% 49 / 50
FirefoxFirefox
 100.0% 7,953 / 7,953 100.0% 1,096 / 1,096 — 0.0% 0 / 20 99.15% 1,047 / 1,056