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Codec: avc1.42141e

87.21% Encoder Support
279,462 of 320,437 sessions supported encoding
99.93% Decoder Support
269,303 of 269,483 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 10 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,437 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.82% 143,431 / 143,690 99.9% 19,865 / 19,884 — 99.77% 63,551 / 63,700 98.82% 7,768 / 7,861
SafariSafari
 — 2.17% 186 / 8,552 1.52% 477 / 31,477 — —
EdgeEdge
 99.99% 30,920 / 30,922 100.0% 352 / 352 — 99.6% 993 / 997 100.0% 64 / 64
FirefoxFirefox
 96.1% 9,156 / 9,528 100.0% 1,315 / 1,315 — 0.0% 0 / 29 98.92% 1,283 / 1,297

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,483 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,223 / 121,260 99.89% 16,134 / 16,152 — 99.99% 53,862 / 53,870 98.96% 6,573 / 6,642
SafariSafari
 — 99.9% 7,180 / 7,187 99.99% 25,836 / 25,839 — —
EdgeEdge
 100.0% 26,926 / 26,927 100.0% 303 / 303 — 100.0% 925 / 925 100.0% 60 / 60
FirefoxFirefox
 100.0% 7,752 / 7,752 100.0% 1,101 / 1,101 — 0.0% 0 / 23 99.44% 1,057 / 1,063