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Codec: avc1.42100c

15.67% Encoder Support
336,881 of 2,150,019 sessions supported encoding
99.8% Decoder Support
2,094,882 of 2,099,069 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 2,150,019 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 229 / 867,992 0.16% 157 / 101,065 — 0.31% 2,044 / 649,994 0.92% 403 / 43,932
SafariSafari
 — 99.73% 48,230 / 48,359 99.97% 218,522 / 218,589 — —
EdgeEdge
 0.02% 32 / 143,215 0.0% 0 / 1,496 — 0.0% 0 / 4,273 0.3% 2 / 659
FirefoxFirefox
 95.89% 51,386 / 53,588 99.93% 7,361 / 7,366 — 0.0% 0 / 110 98.15% 5,823 / 5,933

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,069 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,357 / 845,547 99.82% 97,262 / 97,442 — 99.64% 637,776 / 640,074 98.22% 41,926 / 42,687
SafariSafari
 — 99.84% 46,829 / 46,906 99.98% 212,966 / 213,009 — —
EdgeEdge
 99.99% 139,255 / 139,265 100.0% 1,462 / 1,462 — 100.0% 4,201 / 4,201 99.24% 650 / 655
FirefoxFirefox
 99.97% 51,797 / 51,814 99.97% 7,150 / 7,152 — 0.0% 0 / 103 98.51% 5,611 / 5,696