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Codec: avc1.42140d

4.53% Encoder Support
2,866 of 63,257 sessions supported encoding
99.93% Decoder Support
11,971 of 11,979 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 63,257 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 6 / 27,889 0.09% 4 / 4,404 — 0.16% 19 / 12,207 0.74% 12 / 1,616
SafariSafari
 — 2.41% 40 / 1,661 1.64% 115 / 7,004 — —
EdgeEdge
 0.0% 0 / 5,020 0.0% 0 / 40 — 0.0% 0 / 118 0.0% 0 / 11
FirefoxFirefox
 95.39% 2,112 / 2,214 99.64% 276 / 277 — 0.0% 0 / 15 99.26% 268 / 270

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,979 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,326 / 5,326 99.85% 656 / 657 — 100.0% 2,218 / 2,218 98.98% 390 / 394
SafariSafari
 — 100.0% 277 / 277 100.0% 1,410 / 1,410 — —
EdgeEdge
 100.0% 1,038 / 1,038 — — 100.0% 31 / 31 —
FirefoxFirefox
 100.0% 444 / 444 100.0% 38 / 38 — — 100.0% 54 / 54