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Codec: avc1.4d140c

3.27% Encoder Support
70,107 of 2,147,114 sessions supported encoding
99.8% Decoder Support
2,091,803 of 2,095,943 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,114 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 67 / 867,328 0.14% 138 / 100,395 — 0.03% 186 / 649,382 0.32% 141 / 43,858
SafariSafari
 — 1.49% 718 / 48,260 1.85% 4,038 / 217,780 — —
EdgeEdge
 0.0% 4 / 143,127 0.0% 0 / 1,475 — 0.0% 0 / 4,213 0.31% 2 / 649
FirefoxFirefox
 95.87% 51,322 / 53,533 99.91% 7,491 / 7,498 — 0.0% 0 / 101 97.89% 5,946 / 6,074

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,095,943 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,564 / 844,767 99.77% 96,513 / 96,737 — 99.65% 637,091 / 639,350 98.29% 41,904 / 42,635
SafariSafari
 — 99.85% 46,776 / 46,845 99.98% 212,152 / 212,196 — —
EdgeEdge
 100.0% 139,202 / 139,208 100.0% 1,435 / 1,435 — 100.0% 4,141 / 4,141 98.44% 632 / 642
FirefoxFirefox
 99.97% 51,690 / 51,706 99.96% 7,267 / 7,270 — 0.0% 0 / 89 98.39% 5,747 / 5,841