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Codec: avc1.42100d

16.56% Encoder Support
53,001 of 320,080 sessions supported encoding
99.94% Decoder Support
268,888 of 269,046 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 320,080 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 39 / 143,381 0.18% 36 / 19,697 — 0.14% 86 / 63,416 0.69% 53 / 7,685
SafariSafari
 — 99.88% 8,572 / 8,582 99.95% 31,471 / 31,486 — —
EdgeEdge
 0.03% 9 / 31,113 0.28% 1 / 354 — 0.0% 0 / 1,009 0.0% 0 / 77
FirefoxFirefox
 95.91% 9,435 / 9,837 100.0% 1,315 / 1,315 — 0.0% 0 / 29 98.23% 1,278 / 1,301

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,046 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 120,971 / 121,001 99.91% 16,035 / 16,049 — 99.98% 53,506 / 53,517 99.2% 6,422 / 6,474
SafariSafari
 — 99.93% 7,212 / 7,217 99.99% 25,775 / 25,777 — —
EdgeEdge
 100.0% 27,088 / 27,089 100.0% 314 / 314 — 100.0% 927 / 927 98.55% 68 / 69
FirefoxFirefox
 100.0% 8,042 / 8,042 100.0% 1,075 / 1,075 — 0.0% 0 / 20 99.44% 1,064 / 1,070