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Codec: avc1.420016

99.71% Encoder Support
320,336 of 321,283 sessions supported encoding
99.93% Decoder Support
269,949 of 270,142 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,283 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.84% 144,681 / 144,916 99.92% 19,752 / 19,768 — 99.77% 63,227 / 63,372 98.93% 7,670 / 7,753
SafariSafari
 — 99.83% 8,622 / 8,637 99.98% 31,238 / 31,243 — —
EdgeEdge
 100.0% 31,073 / 31,074 100.0% 375 / 375 — 99.58% 959 / 963 98.65% 73 / 74
FirefoxFirefox
 96.07% 9,368 / 9,751 100.0% 1,289 / 1,289 — 0.0% 0 / 29 99.36% 1,235 / 1,243

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,142 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,241 / 122,282 99.89% 16,064 / 16,081 — 99.98% 53,467 / 53,476 99.01% 6,496 / 6,561
SafariSafari
 — 99.82% 7,238 / 7,251 99.98% 25,670 / 25,675 — —
EdgeEdge
 100.0% 27,086 / 27,087 100.0% 330 / 330 — 100.0% 888 / 888 98.44% 63 / 64
FirefoxFirefox
 100.0% 7,985 / 7,985 100.0% 1,047 / 1,047 — 0.0% 0 / 21 99.7% 998 / 1,001