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Codec: avc1.420c14

3.98% Encoder Support
12,766 of 320,945 sessions supported encoding
99.94% Decoder Support
269,614 of 269,780 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 2 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,945 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 37 / 143,996 0.17% 33 / 19,674 — 0.14% 88 / 63,699 0.69% 53 / 7,708
SafariSafari
 — 1.81% 158 / 8,717 1.47% 461 / 31,443 — —
EdgeEdge
 0.02% 6 / 31,187 0.0% 0 / 346 — 0.0% 0 / 981 0.0% 0 / 70
FirefoxFirefox
 96.23% 9,311 / 9,676 100.0% 1,313 / 1,313 — 0.0% 0 / 34 97.69% 1,269 / 1,299

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,780 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,532 / 121,563 99.91% 16,021 / 16,035 — 99.99% 53,634 / 53,641 99.15% 6,436 / 6,491
SafariSafari
 — 99.9% 7,290 / 7,297 99.98% 25,854 / 25,858 — —
EdgeEdge
 100.0% 27,133 / 27,134 100.0% 306 / 306 — 100.0% 905 / 905 100.0% 63 / 63
FirefoxFirefox
 99.99% 7,933 / 7,934 100.0% 1,085 / 1,085 — 0.0% 0 / 26 99.43% 1,052 / 1,058