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Codec: avc1.42000c

15.66% Encoder Support
336,093 of 2,146,773 sessions supported encoding
99.81% Decoder Support
2,091,375 of 2,095,461 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,773 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 223 / 867,087 0.15% 153 / 100,470 — 0.3% 1,937 / 649,564 0.94% 411 / 43,555
SafariSafari
 — 99.71% 47,889 / 48,028 99.97% 218,048 / 218,122 — —
EdgeEdge
 0.03% 50 / 143,045 0.07% 1 / 1,460 — 0.0% 0 / 4,189 0.14% 1 / 707
FirefoxFirefox
 95.78% 51,297 / 53,558 99.92% 7,458 / 7,464 — 0.0% 0 / 119 98.13% 5,867 / 5,979

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,095,461 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,326 / 844,517 99.8% 96,542 / 96,735 — 99.65% 637,289 / 639,522 98.27% 41,688 / 42,421
SafariSafari
 — 99.84% 46,564 / 46,640 99.98% 212,460 / 212,507 — —
EdgeEdge
 99.99% 139,025 / 139,036 100.0% 1,414 / 1,414 — 100.0% 4,114 / 4,114 98.72% 692 / 701
FirefoxFirefox
 99.96% 51,729 / 51,748 99.97% 7,238 / 7,240 — 0.0% 0 / 110 98.44% 5,662 / 5,752