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Codec: avc1.4d0433

86.53% Encoder Support
276,816 of 319,918 sessions supported encoding
99.93% Decoder Support
268,691 of 268,872 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,918 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 142,854 / 143,871 99.83% 19,837 / 19,871 — 97.54% 62,024 / 63,591 97.96% 7,449 / 7,604
SafariSafari
 — 1.79% 153 / 8,555 1.48% 462 / 31,121 — —
EdgeEdge
 99.76% 30,704 / 30,777 100.0% 379 / 379 — 98.95% 940 / 950 96.88% 62 / 64
FirefoxFirefox
 96.12% 9,288 / 9,663 100.0% 1,301 / 1,301 — 0.0% 0 / 41 98.29% 1,263 / 1,285

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,872 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,435 / 121,465 99.86% 16,133 / 16,156 — 99.99% 53,567 / 53,574 99.11% 6,372 / 6,429
SafariSafari
 — 99.92% 7,172 / 7,178 99.98% 25,569 / 25,574 — —
EdgeEdge
 100.0% 26,765 / 26,766 100.0% 342 / 342 — 100.0% 872 / 872 98.33% 59 / 60
FirefoxFirefox
 100.0% 7,899 / 7,899 100.0% 1,071 / 1,071 — 0.0% 0 / 26 99.05% 1,038 / 1,048