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Codec: avc1.42000b

18.71% Encoder Support
11,797 of 63,049 sessions supported encoding
99.95% Decoder Support
11,938 of 11,944 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,049 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.04% 10 / 27,815 0.16% 7 / 4,423 — 0.16% 20 / 12,196 0.64% 10 / 1,564
SafariSafari
 — 100.0% 1,641 / 1,641 99.99% 6,928 / 6,929 — —
EdgeEdge
 0.0% 0 / 5,017 0.0% 0 / 43 — 0.0% 0 / 114 0.0% 0 / 11
FirefoxFirefox
 96.48% 2,138 / 2,216 99.63% 270 / 271 — — 98.93% 278 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,944 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,262 / 5,263 99.86% 734 / 735 — 100.0% 2,200 / 2,200 99.73% 376 / 377
SafariSafari
 — 100.0% 276 / 276 100.0% 1,398 / 1,398 — —
EdgeEdge
 100.0% 1,056 / 1,056 — — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 394 / 394 100.0% 36 / 36 — — 100.0% 65 / 65