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Codec: avc1.640432

84.18% Encoder Support
53,075 of 63,052 sessions supported encoding
99.94% Decoder Support
12,015 of 12,022 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,052 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.13% 27,442 / 27,683 99.93% 4,354 / 4,357 — 96.22% 11,657 / 12,115 97.75% 1,566 / 1,602
SafariSafari
 — 3.08% 52 / 1,691 1.47% 105 / 7,133 — —
EdgeEdge
 99.84% 5,094 / 5,102 100.0% 47 / 47 — 97.87% 92 / 94 —
FirefoxFirefox
 94.94% 2,007 / 2,114 100.0% 299 / 299 — 0.0% 0 / 12 99.69% 318 / 319

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,022 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,257 / 5,258 99.86% 701 / 702 — 100.0% 2,253 / 2,253 98.74% 392 / 397
SafariSafari
 — 100.0% 259 / 259 100.0% 1,443 / 1,443 — —
EdgeEdge
 100.0% 1,074 / 1,074 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 388 / 388 100.0% 58 / 58 — — 100.0% 70 / 70