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Codec: avc1.640434

84.18% Encoder Support
52,799 of 62,722 sessions supported encoding
99.96% Decoder Support
11,925 of 11,930 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,722 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.22% 27,254 / 27,467 99.86% 4,296 / 4,302 — 96.11% 11,785 / 12,262 97.78% 1,541 / 1,576
SafariSafari
 — 2.99% 50 / 1,675 1.44% 102 / 7,063 — —
EdgeEdge
 99.8% 4,915 / 4,925 100.0% 40 / 40 — 97.12% 101 / 104 —
FirefoxFirefox
 95.13% 2,128 / 2,237 100.0% 269 / 269 — 0.0% 0 / 17 98.93% 278 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,930 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,250 / 5,250 99.85% 662 / 663 — 100.0% 2,256 / 2,256 99.75% 399 / 400
SafariSafari
 — 100.0% 266 / 266 100.0% 1,465 / 1,465 — —
EdgeEdge
 100.0% 1,013 / 1,013 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 396 / 396 100.0% 43 / 43 — — 100.0% 55 / 55