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Codec: avc1.42100d

18.92% Encoder Support
11,914 of 62,956 sessions supported encoding
99.92% Decoder Support
11,938 of 11,948 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 62,956 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 7 / 27,602 0.16% 7 / 4,300 — 0.2% 24 / 12,182 0.88% 14 / 1,599
SafariSafari
 — 99.88% 1,627 / 1,629 99.96% 7,101 / 7,104 — —
EdgeEdge
 0.0% 0 / 5,089 2.17% 1 / 46 — 0.0% 0 / 121 0.0% 0 / 13
FirefoxFirefox
 95.5% 2,123 / 2,223 100.0% 284 / 284 — 0.0% 0 / 11 98.91% 273 / 276

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,948 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,223 / 5,225 99.85% 651 / 652 — 100.0% 2,283 / 2,283 98.71% 383 / 388
SafariSafari
 — 100.0% 269 / 269 100.0% 1,413 / 1,413 — —
EdgeEdge
 100.0% 1,065 / 1,065 — — 100.0% 39 / 39 —
FirefoxFirefox
 100.0% 428 / 428 100.0% 44 / 44 — — 100.0% 45 / 45