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Codec: avc1.641433

86.26% Encoder Support
276,246 of 320,231 sessions supported encoding
99.93% Decoder Support
269,080 of 269,267 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,231 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.23% 142,799 / 143,900 99.85% 19,440 / 19,469 — 96.25% 61,565 / 63,964 97.48% 7,579 / 7,775
SafariSafari
 — 1.91% 163 / 8,556 1.59% 494 / 31,162 — —
EdgeEdge
 99.81% 30,993 / 31,053 100.0% 332 / 332 — 98.07% 913 / 931 100.0% 52 / 52
FirefoxFirefox
 96.18% 9,264 / 9,632 100.0% 1,280 / 1,280 — 0.0% 0 / 28 98.6% 1,268 / 1,286

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,267 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,312 / 121,354 99.88% 15,864 / 15,883 — 99.99% 54,048 / 54,054 99.01% 6,496 / 6,561
SafariSafari
 — 99.89% 7,174 / 7,182 99.99% 25,607 / 25,610 — —
EdgeEdge
 100.0% 27,099 / 27,100 100.0% 288 / 288 — 100.0% 852 / 852 100.0% 43 / 43
FirefoxFirefox
 100.0% 7,836 / 7,836 100.0% 1,054 / 1,054 — 0.0% 0 / 18 98.76% 1,039 / 1,052