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Codec: avc1.421420

85.41% Encoder Support
53,840 of 63,035 sessions supported encoding
99.95% Decoder Support
11,863 of 11,869 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 63,035 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.79% 27,736 / 27,795 99.95% 4,382 / 4,384 — 99.75% 12,180 / 12,210 98.83% 1,600 / 1,619
SafariSafari
 — 2.17% 35 / 1,616 1.47% 104 / 7,088 — —
EdgeEdge
 100.0% 4,889 / 4,889 97.92% 47 / 48 — 100.0% 120 / 120 100.0% 12 / 12
FirefoxFirefox
 95.63% 2,081 / 2,176 100.0% 289 / 289 — — 99.69% 317 / 318

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,869 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,325 / 5,326 99.85% 671 / 672 — 100.0% 2,210 / 2,210 99.47% 373 / 375
SafariSafari
 — 100.0% 253 / 253 100.0% 1,419 / 1,419 — —
EdgeEdge
 100.0% 958 / 958 — — 100.0% 38 / 38 —
FirefoxFirefox
 100.0% 428 / 428 100.0% 44 / 44 — — 100.0% 62 / 62