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Codec: avc1.42000a

16.49% Encoder Support
52,910 of 320,768 sessions supported encoding
99.94% Decoder Support
269,563 of 269,724 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,768 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 33 / 144,051 0.2% 39 / 19,605 — 0.14% 87 / 63,640 0.82% 64 / 7,797
SafariSafari
 — 99.95% 8,670 / 8,674 99.96% 31,305 / 31,317 — —
EdgeEdge
 0.02% 6 / 31,026 0.26% 1 / 385 — 0.0% 0 / 992 0.0% 0 / 54
FirefoxFirefox
 96.04% 9,322 / 9,706 99.92% 1,308 / 1,309 — 0.0% 0 / 36 97.96% 1,343 / 1,371

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,724 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,598 / 121,628 99.86% 15,939 / 15,961 — 99.98% 53,766 / 53,776 99.08% 6,482 / 6,542
SafariSafari
 — 99.97% 7,298 / 7,300 99.99% 25,606 / 25,608 — —
EdgeEdge
 100.0% 27,028 / 27,028 100.0% 346 / 346 — 100.0% 908 / 908 100.0% 52 / 52
FirefoxFirefox
 100.0% 7,947 / 7,947 100.0% 1,095 / 1,095 — 0.0% 0 / 25 99.64% 1,117 / 1,121