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Codec: avc1.420028

99.59% Encoder Support
62,491 of 62,747 sessions supported encoding
99.95% Decoder Support
11,857 of 11,863 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,747 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.74% 27,522 / 27,593 99.98% 4,334 / 4,335 — 99.76% 12,146 / 12,175 98.7% 1,598 / 1,619
SafariSafari
 — 99.94% 1,648 / 1,649 100.0% 7,018 / 7,018 — —
EdgeEdge
 100.0% 5,031 / 5,031 100.0% 49 / 49 — 100.0% 96 / 96 —
FirefoxFirefox
 94.55% 2,012 / 2,128 100.0% 276 / 276 — 0.0% 0 / 10 98.59% 279 / 283

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,863 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,129 / 5,129 100.0% 715 / 715 — 100.0% 2,237 / 2,237 99.22% 383 / 386
SafariSafari
 — 100.0% 287 / 287 100.0% 1,436 / 1,436 — —
EdgeEdge
 100.0% 1,023 / 1,023 — — 100.0% 28 / 28 —
FirefoxFirefox
 100.0% 421 / 421 100.0% 48 / 48 — — 100.0% 52 / 52