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Codec: avc1.42000b

15.65% Encoder Support
336,253 of 2,148,623 sessions supported encoding
99.8% Decoder Support
2,093,343 of 2,097,505 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 2,148,623 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 228 / 867,741 0.17% 173 / 100,522 — 0.3% 1,954 / 649,774 0.88% 386 / 43,662
SafariSafari
 — 99.78% 47,868 / 47,974 99.97% 218,171 / 218,233 — —
EdgeEdge
 0.02% 29 / 143,706 0.07% 1 / 1,441 — 0.0% 0 / 4,264 0.14% 1 / 727
FirefoxFirefox
 95.94% 51,474 / 53,651 99.89% 7,394 / 7,402 — 0.0% 0 / 121 97.73% 5,851 / 5,987

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,505 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,984 / 845,187 99.81% 96,647 / 96,834 — 99.64% 637,487 / 639,778 98.27% 41,740 / 42,475
SafariSafari
 — 99.86% 46,542 / 46,606 99.98% 212,652 / 212,694 — —
EdgeEdge
 99.99% 139,733 / 139,745 100.0% 1,402 / 1,402 — 100.0% 4,186 / 4,186 98.89% 711 / 719
FirefoxFirefox
 99.98% 51,817 / 51,829 99.97% 7,165 / 7,167 — 0.87% 1 / 115 98.37% 5,677 / 5,771