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Codec: avc1.4d0432

86.44% Encoder Support
1,856,964 of 2,148,202 sessions supported encoding
99.8% Decoder Support
2,093,099 of 2,097,293 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 2,148,202 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 861,990 / 867,163 99.77% 100,719 / 100,951 — 97.34% 632,107 / 649,373 96.7% 42,363 / 43,809
SafariSafari
 — 1.54% 741 / 48,120 1.88% 4,096 / 218,134 — —
EdgeEdge
 99.86% 143,396 / 143,600 100.0% 1,542 / 1,542 — 99.41% 4,214 / 4,239 98.74% 704 / 713
FirefoxFirefox
 95.9% 51,378 / 53,577 99.96% 7,389 / 7,392 — 0.85% 1 / 117 98.77% 6,003 / 6,078

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,293 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,392 / 844,595 99.82% 97,146 / 97,317 — 99.64% 637,222 / 639,548 98.33% 41,946 / 42,659
SafariSafari
 — 99.82% 46,687 / 46,770 99.97% 212,462 / 212,517 — —
EdgeEdge
 99.99% 139,603 / 139,610 100.0% 1,499 / 1,499 — 100.0% 4,158 / 4,158 99.0% 696 / 703
FirefoxFirefox
 99.97% 51,813 / 51,829 99.96% 7,169 / 7,172 — 0.95% 1 / 105 98.27% 5,737 / 5,838