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Codec: avc1.42040b

4.63% Encoder Support
2,904 of 62,735 sessions supported encoding
99.95% Decoder Support
11,839 of 11,845 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 62,735 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.04% 10 / 27,474 0.09% 4 / 4,381 — 0.15% 18 / 12,150 0.83% 13 / 1,563
SafariSafari
 — 2.87% 47 / 1,635 1.61% 114 / 7,092 — —
EdgeEdge
 0.0% 0 / 4,984 0.0% 0 / 60 — 0.0% 0 / 110 —
FirefoxFirefox
 95.23% 2,098 / 2,203 100.0% 288 / 288 — 0.0% 0 / 11 98.63% 289 / 293

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,845 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,137 / 5,138 99.7% 668 / 670 — 100.0% 2,290 / 2,290 99.47% 378 / 380
SafariSafari
 — 100.0% 264 / 264 100.0% 1,438 / 1,438 — —
EdgeEdge
 100.0% 1,026 / 1,026 — — 100.0% 35 / 35 —
FirefoxFirefox
 100.0% 399 / 399 100.0% 47 / 47 — — 100.0% 63 / 63