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Codec: avc1.420429

87.34% Encoder Support
1,876,337 of 2,148,253 sessions supported encoding
99.8% Decoder Support
2,092,902 of 2,097,059 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,253 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 865,888 / 866,510 99.79% 100,482 / 100,689 — 99.5% 647,027 / 650,280 98.03% 43,036 / 43,900
SafariSafari
 — 1.45% 702 / 48,358 1.86% 4,064 / 218,033 — —
EdgeEdge
 100.0% 143,592 / 143,599 100.0% 1,453 / 1,453 — 99.84% 4,239 / 4,246 98.83% 675 / 683
FirefoxFirefox
 95.92% 51,217 / 53,393 99.99% 7,530 / 7,531 — 1.94% 2 / 103 98.84% 5,953 / 6,023

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,059 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 843,830 / 844,045 99.79% 96,802 / 97,008 — 99.64% 637,966 / 640,273 98.34% 42,044 / 42,752
SafariSafari
 — 99.87% 46,927 / 46,987 99.97% 212,313 / 212,368 — —
EdgeEdge
 100.0% 139,610 / 139,616 100.0% 1,405 / 1,405 — 100.0% 4,171 / 4,171 99.11% 669 / 675
FirefoxFirefox
 99.96% 51,529 / 51,552 99.95% 7,283 / 7,287 — 2.2% 2 / 91 98.55% 5,710 / 5,794