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Codec: avc1.42100b

18.81% Encoder Support
11,918 of 63,358 sessions supported encoding
99.94% Decoder Support
11,920 of 11,927 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 63,358 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 9 / 27,701 0.14% 6 / 4,368 — 0.13% 16 / 12,394 0.8% 13 / 1,634
SafariSafari
 — 99.88% 1,639 / 1,641 99.99% 7,063 / 7,064 — —
EdgeEdge
 0.0% 0 / 5,064 1.79% 1 / 56 — 0.0% 0 / 113 —
FirefoxFirefox
 95.56% 2,111 / 2,209 99.65% 283 / 284 — 0.0% 0 / 10 98.23% 278 / 283

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,927 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,197 / 5,197 100.0% 667 / 667 — 100.0% 2,244 / 2,244 99.01% 401 / 405
SafariSafari
 — 100.0% 282 / 282 100.0% 1,438 / 1,438 — —
EdgeEdge
 100.0% 1,033 / 1,033 100.0% 11 / 11 — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 411 / 411 100.0% 49 / 49 — — 100.0% 53 / 53