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Codec: avc1.4d1432

86.42% Encoder Support
1,857,504 of 2,149,355 sessions supported encoding
99.8% Decoder Support
2,094,269 of 2,098,413 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 2,149,355 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 862,624 / 867,937 99.78% 100,273 / 100,494 — 97.36% 631,960 / 649,094 96.59% 42,674 / 44,179
SafariSafari
 — 1.56% 754 / 48,254 1.86% 4,070 / 218,576 — —
EdgeEdge
 99.86% 143,616 / 143,820 100.0% 1,477 / 1,477 — 99.25% 4,227 / 4,259 99.29% 702 / 707
FirefoxFirefox
 95.95% 51,234 / 53,396 100.0% 7,563 / 7,563 — 0.0% 0 / 113 98.74% 5,952 / 6,028

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,413 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 845,250 / 845,472 99.82% 96,683 / 96,856 — 99.64% 636,919 / 639,217 98.38% 42,228 / 42,925
SafariSafari
 — 99.82% 46,810 / 46,894 99.98% 212,981 / 213,034 — —
EdgeEdge
 99.99% 139,815 / 139,824 100.0% 1,435 / 1,435 — 100.0% 4,190 / 4,190 99.29% 696 / 701
FirefoxFirefox
 99.96% 51,550 / 51,569 99.99% 7,343 / 7,344 — 0.0% 0 / 103 98.41% 5,700 / 5,792