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Codec: avc1.420815

4.51% Encoder Support
2,844 of 63,040 sessions supported encoding
99.93% Decoder Support
11,867 of 11,875 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 63,040 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 7 / 27,768 0.14% 6 / 4,398 — 0.19% 23 / 12,137 1.04% 17 / 1,628
SafariSafari
 — 2.19% 37 / 1,692 1.37% 96 / 7,010 — —
EdgeEdge
 0.0% 0 / 4,984 0.0% 0 / 61 — 0.0% 0 / 116 —
FirefoxFirefox
 95.25% 2,086 / 2,190 100.0% 279 / 279 — — 98.21% 275 / 280

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,875 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,279 / 5,281 100.0% 696 / 696 — 100.0% 2,209 / 2,209 99.26% 404 / 407
SafariSafari
 — 100.0% 256 / 256 100.0% 1,361 / 1,361 — —
EdgeEdge
 100.0% 1,023 / 1,023 — — 100.0% 31 / 31 —
FirefoxFirefox
 100.0% 405 / 405 100.0% 49 / 49 — — 100.0% 57 / 57