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Codec: avc1.640c32

98.45% Encoder Support
2,114,885 of 2,148,214 sessions supported encoding
99.8% Decoder Support
2,093,115 of 2,097,215 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 2,148,214 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.37% 862,233 / 867,659 99.76% 100,536 / 100,777 — 96.5% 627,079 / 649,842 96.39% 42,031 / 43,606
SafariSafari
 — 99.75% 48,273 / 48,393 99.98% 217,579 / 217,632 — —
EdgeEdge
 99.85% 143,349 / 143,561 100.0% 1,469 / 1,469 — 98.77% 4,185 / 4,237 98.98% 676 / 683
FirefoxFirefox
 95.88% 51,208 / 53,407 99.96% 7,347 / 7,350 — 0.97% 1 / 103 99.0% 5,941 / 6,001

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,215 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,033 / 845,222 99.81% 96,958 / 97,143 — 99.65% 637,605 / 639,862 98.33% 41,716 / 42,424
SafariSafari
 — 99.83% 46,920 / 46,999 99.98% 211,956 / 212,009 — —
EdgeEdge
 99.99% 139,585 / 139,597 100.0% 1,428 / 1,428 — 100.0% 4,152 / 4,152 99.26% 673 / 678
FirefoxFirefox
 99.97% 51,596 / 51,614 99.94% 7,114 / 7,118 — 1.05% 1 / 95 98.39% 5,675 / 5,768