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Codec: avc1.42101f

99.71% Encoder Support
319,220 of 320,135 sessions supported encoding
99.93% Decoder Support
269,000 of 269,180 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3.1
Maximum Resolution HD ready (1024×960)
Maximum Bitrate 14 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,135 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 143,625 / 143,870 99.91% 19,650 / 19,668 — 99.8% 63,597 / 63,723 98.87% 7,673 / 7,761
SafariSafari
 — 99.92% 8,550 / 8,557 99.99% 31,065 / 31,069 — —
EdgeEdge
 100.0% 30,867 / 30,867 100.0% 380 / 380 — 99.67% 915 / 918 100.0% 60 / 60
FirefoxFirefox
 96.34% 9,413 / 9,771 100.0% 1,310 / 1,310 — 0.0% 0 / 31 98.96% 1,330 / 1,344

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,180 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,390 / 121,428 99.89% 15,973 / 15,991 — 99.99% 53,759 / 53,763 99.02% 6,473 / 6,537
SafariSafari
 — 99.92% 7,224 / 7,230 99.98% 25,519 / 25,523 — —
EdgeEdge
 100.0% 26,903 / 26,903 100.0% 337 / 337 — 100.0% 839 / 839 100.0% 54 / 54
FirefoxFirefox
 99.99% 7,958 / 7,959 100.0% 1,079 / 1,079 — 0.0% 0 / 25 99.46% 1,106 / 1,112