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Codec: avc1.420c20

85.13% Encoder Support
53,783 of 63,176 sessions supported encoding
99.96% Decoder Support
11,899 of 11,904 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,176 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.74% 27,684 / 27,757 99.95% 4,353 / 4,355 — 99.74% 12,102 / 12,133 99.13% 1,598 / 1,612
SafariSafari
 — 2.32% 39 / 1,680 1.85% 133 / 7,184 — —
EdgeEdge
 100.0% 4,996 / 4,996 97.78% 44 / 45 — 100.0% 118 / 118 —
FirefoxFirefox
 95.47% 2,087 / 2,186 100.0% 275 / 275 — — 99.67% 302 / 303

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,904 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,210 / 5,211 99.86% 694 / 695 — 100.0% 2,222 / 2,222 99.51% 410 / 412
SafariSafari
 — 100.0% 275 / 275 100.0% 1,408 / 1,408 — —
EdgeEdge
 100.0% 1,036 / 1,036 — — 100.0% 39 / 39 —
FirefoxFirefox
 100.0% 404 / 404 100.0% 51 / 51 — — 100.0% 59 / 59