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Codec: avc1.64103c

84.51% Encoder Support
52,985 of 62,695 sessions supported encoding
85.6% Decoder Support
10,168 of 11,878 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,695 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.31% 27,275 / 27,465 99.89% 4,359 / 4,364 — 96.27% 11,740 / 12,195 97.4% 1,573 / 1,615
SafariSafari
 — 2.28% 38 / 1,666 1.61% 112 / 6,947 — —
EdgeEdge
 99.82% 5,048 / 5,057 100.0% 48 / 48 — 100.0% 109 / 109 90.0% 9 / 10
FirefoxFirefox
 95.49% 2,075 / 2,173 100.0% 274 / 274 — 0.0% 0 / 12 99.65% 288 / 289

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,878 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,197 / 5,198 99.71% 684 / 686 — 99.68% 2,213 / 2,220 99.26% 401 / 404
SafariSafari
 — 3.09% 8 / 259 1.78% 25 / 1,402 — —
EdgeEdge
 100.0% 1,040 / 1,040 — — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 427 / 427 100.0% 47 / 47 — — 100.0% 74 / 74