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Codec: avc1.42040b

3.38% Encoder Support
72,698 of 2,150,238 sessions supported encoding
99.81% Decoder Support
2,095,262 of 2,099,322 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,150,238 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 259 / 868,290 0.15% 150 / 100,504 — 0.3% 1,971 / 649,778 0.91% 398 / 43,942
SafariSafari
 — 1.55% 743 / 47,970 1.85% 4,039 / 218,619 — —
EdgeEdge
 0.02% 32 / 143,963 0.0% 0 / 1,516 — 0.0% 0 / 4,157 0.14% 1 / 718
FirefoxFirefox
 95.98% 51,459 / 53,615 99.91% 7,514 / 7,521 — 0.0% 0 / 114 97.9% 5,958 / 6,086

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,322 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,742 / 845,951 99.82% 96,618 / 96,793 — 99.65% 637,710 / 639,918 98.37% 42,064 / 42,759
SafariSafari
 — 99.79% 46,496 / 46,592 99.98% 212,903 / 212,949 — —
EdgeEdge
 100.0% 140,001 / 140,005 100.0% 1,461 / 1,461 — 100.0% 4,082 / 4,082 98.87% 703 / 711
FirefoxFirefox
 99.97% 51,796 / 51,811 99.95% 7,276 / 7,280 — 0.0% 0 / 104 98.34% 5,759 / 5,856