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Codec: avc1.42100a

16.39% Encoder Support
52,564 of 320,785 sessions supported encoding
99.93% Decoder Support
269,628 of 269,804 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,785 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 47 / 144,194 0.17% 33 / 19,692 — 0.14% 91 / 63,827 0.73% 57 / 7,797
SafariSafari
 — 99.87% 8,547 / 8,558 99.97% 31,347 / 31,356 — —
EdgeEdge
 0.03% 9 / 31,014 0.0% 0 / 361 — 0.0% 0 / 984 0.0% 0 / 66
FirefoxFirefox
 96.12% 9,260 / 9,634 100.0% 1,253 / 1,253 — 0.0% 0 / 44 98.15% 1,218 / 1,241

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,804 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,644 / 121,678 99.94% 16,021 / 16,030 — 99.98% 53,947 / 53,958 99.07% 6,501 / 6,562
SafariSafari
 — 99.89% 7,150 / 7,158 100.0% 25,701 / 25,702 — —
EdgeEdge
 100.0% 27,062 / 27,062 100.0% 317 / 317 — 100.0% 889 / 889 100.0% 61 / 61
FirefoxFirefox
 99.99% 7,943 / 7,944 100.0% 1,035 / 1,035 — 0.0% 0 / 33 99.22% 1,024 / 1,032