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Codec: avc1.4d0433

84.71% Encoder Support
53,321 of 62,949 sessions supported encoding
99.91% Decoder Support
11,909 of 11,920 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 62,949 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.17% 27,380 / 27,608 99.93% 4,407 / 4,410 — 97.34% 11,940 / 12,266 98.1% 1,553 / 1,583
SafariSafari
 — 2.26% 37 / 1,637 1.99% 139 / 6,975 — —
EdgeEdge
 99.78% 5,025 / 5,036 100.0% 46 / 46 — 99.07% 106 / 107 —
FirefoxFirefox
 95.62% 2,076 / 2,171 100.0% 284 / 284 — 0.0% 0 / 18 98.24% 279 / 284

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,920 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,201 / 5,202 99.71% 693 / 695 — 100.0% 2,249 / 2,249 98.77% 403 / 408
SafariSafari
 — 100.0% 263 / 263 100.0% 1,442 / 1,442 — —
EdgeEdge
 100.0% 1,025 / 1,025 — — 100.0% 29 / 29 —
FirefoxFirefox
 100.0% 407 / 407 100.0% 54 / 54 — — 100.0% 47 / 47