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Codec: avc1.64042a

86.13% Encoder Support
1,851,654 of 2,149,738 sessions supported encoding
99.8% Decoder Support
2,094,603 of 2,098,726 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,738 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.36% 862,724 / 868,292 99.77% 99,977 / 100,209 — 96.49% 627,264 / 650,069 96.37% 42,522 / 44,125
SafariSafari
 — 1.49% 714 / 47,827 1.88% 4,125 / 219,038 — —
EdgeEdge
 99.84% 143,187 / 143,422 99.93% 1,436 / 1,437 — 98.44% 4,030 / 4,094 98.29% 690 / 702
FirefoxFirefox
 95.84% 51,271 / 53,496 99.96% 7,414 / 7,417 — 0.92% 1 / 109 98.72% 5,926 / 6,003

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,726 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,748 / 845,944 99.81% 96,408 / 96,588 — 99.64% 637,771 / 640,055 98.38% 42,186 / 42,882
SafariSafari
 — 99.82% 46,357 / 46,441 99.98% 213,365 / 213,417 — —
EdgeEdge
 100.0% 139,421 / 139,426 100.0% 1,400 / 1,400 — 100.0% 4,022 / 4,022 98.84% 684 / 692
FirefoxFirefox
 99.97% 51,718 / 51,732 99.94% 7,160 / 7,164 — 1.06% 1 / 94 98.24% 5,678 / 5,780