← Back to Codec Support Table

Codec: avc1.420020

99.63% Encoder Support
2,141,101 of 2,148,950 sessions supported encoding
99.8% Decoder Support
2,093,801 of 2,098,017 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 2,148,950 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,482 / 867,061 99.81% 100,140 / 100,334 — 99.51% 646,439 / 649,648 97.99% 43,236 / 44,125
SafariSafari
 — 99.73% 48,116 / 48,244 99.98% 217,826 / 217,873 — —
EdgeEdge
 100.0% 144,410 / 144,417 100.0% 1,437 / 1,437 — 99.89% 4,391 / 4,396 98.62% 643 / 652
FirefoxFirefox
 95.98% 51,312 / 53,463 99.96% 7,636 / 7,639 — 0.0% 0 / 110 98.81% 5,961 / 6,033

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,017 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,466 / 844,659 99.8% 96,545 / 96,741 — 99.65% 637,515 / 639,775 98.21% 42,147 / 42,913
SafariSafari
 — 99.84% 46,793 / 46,870 99.98% 212,186 / 212,233 — —
EdgeEdge
 100.0% 140,397 / 140,404 100.0% 1,394 / 1,394 — 100.0% 4,316 / 4,316 98.76% 638 / 646
FirefoxFirefox
 99.96% 51,668 / 51,688 99.95% 7,394 / 7,398 — 0.0% 0 / 100 98.3% 5,678 / 5,776