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Codec: avc1.42100d

15.67% Encoder Support
336,485 of 2,147,865 sessions supported encoding
99.81% Decoder Support
2,092,742 of 2,096,830 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,865 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 237 / 866,486 0.17% 173 / 100,584 — 0.3% 1,953 / 649,538 0.87% 378 / 43,521
SafariSafari
 — 99.76% 47,958 / 48,075 99.96% 218,170 / 218,247 — —
EdgeEdge
 0.02% 36 / 144,214 0.14% 2 / 1,404 — 0.0% 0 / 4,305 0.27% 2 / 747
FirefoxFirefox
 95.88% 51,475 / 53,688 99.88% 7,356 / 7,365 — 0.0% 0 / 109 97.97% 5,948 / 6,071

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,830 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 843,928 / 844,106 99.8% 96,742 / 96,936 — 99.64% 637,353 / 639,639 98.45% 41,654 / 42,310
SafariSafari
 — 99.84% 46,634 / 46,709 99.97% 212,483 / 212,538 — —
EdgeEdge
 99.99% 140,178 / 140,190 100.0% 1,364 / 1,364 — 100.0% 4,223 / 4,223 98.78% 730 / 739
FirefoxFirefox
 99.98% 51,881 / 51,893 99.97% 7,123 / 7,125 — 0.0% 0 / 100 98.3% 5,741 / 5,840