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Codec: avc1.42140d

3.99% Encoder Support
12,811 of 321,392 sessions supported encoding
99.93% Decoder Support
269,908 of 270,091 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 321,392 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 34 / 144,386 0.16% 32 / 19,877 — 0.13% 86 / 63,863 0.86% 67 / 7,828
SafariSafari
 — 1.8% 155 / 8,622 1.5% 469 / 31,260 — —
EdgeEdge
 0.05% 14 / 30,945 0.0% 0 / 361 — 0.0% 0 / 994 0.0% 0 / 56
FirefoxFirefox
 96.03% 9,355 / 9,742 99.92% 1,317 / 1,318 — 0.0% 0 / 29 98.58% 1,250 / 1,268

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,091 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,782 / 121,822 99.89% 16,112 / 16,130 — 99.99% 53,867 / 53,874 99.02% 6,541 / 6,606
SafariSafari
 — 99.89% 7,225 / 7,233 99.98% 25,644 / 25,649 — —
EdgeEdge
 100.0% 26,963 / 26,963 100.0% 327 / 327 — 100.0% 907 / 907 95.92% 47 / 49
FirefoxFirefox
 99.99% 7,971 / 7,972 100.0% 1,079 / 1,079 — 0.0% 0 / 17 99.24% 1,044 / 1,052