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Codec: avc1.420015

18.79% Encoder Support
11,888 of 63,268 sessions supported encoding
99.94% Decoder Support
11,951 of 11,958 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 63,268 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
0.02% 5 / 27,788 0.14% 6 / 4,368 0.16% 20 / 12,252 0.89% 14 / 1,570
SafariSafari
99.88% 1,620 / 1,622 99.99% 7,038 / 7,039
EdgeEdge
0.0% 0 / 5,098 0.0% 0 / 64 0.0% 0 / 119 0.0% 0 / 13
FirefoxFirefox
94.91% 2,107 / 2,220 100.0% 295 / 295 98.46% 319 / 324

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,958 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.96% 5,240 / 5,242 99.71% 677 / 679 100.0% 2,266 / 2,266 99.24% 391 / 394
SafariSafari
100.0% 273 / 273 100.0% 1,413 / 1,413
EdgeEdge
100.0% 1,029 / 1,029 100.0% 35 / 35
FirefoxFirefox
100.0% 428 / 428 100.0% 57 / 57 100.0% 65 / 65