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Codec: avc1.420415

3.94% Encoder Support
12,641 of 320,607 sessions supported encoding
99.93% Decoder Support
269,228 of 269,412 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,607 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 32 / 144,154 0.08% 16 / 19,817 — 0.14% 88 / 63,427 0.76% 59 / 7,753
SafariSafari
 — 2.03% 175 / 8,632 1.33% 416 / 31,267 — —
EdgeEdge
 0.04% 13 / 31,080 0.0% 0 / 367 — 0.0% 0 / 955 0.0% 0 / 58
FirefoxFirefox
 96.04% 9,344 / 9,729 100.0% 1,259 / 1,259 — 0.0% 0 / 41 98.6% 1,198 / 1,215

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,412 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,540 / 121,574 99.91% 16,182 / 16,197 — 99.98% 53,417 / 53,426 99.15% 6,505 / 6,561
SafariSafari
 — 99.89% 7,255 / 7,263 99.99% 25,675 / 25,678 — —
EdgeEdge
 100.0% 27,092 / 27,092 100.0% 329 / 329 — 100.0% 879 / 879 100.0% 54 / 54
FirefoxFirefox
 100.0% 7,901 / 7,901 100.0% 1,032 / 1,032 — 0.0% 0 / 34 99.39% 983 / 989