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Codec: avc1.420829

87.35% Encoder Support
1,877,747 of 2,149,561 sessions supported encoding
99.8% Decoder Support
2,094,291 of 2,098,410 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 2,149,561 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,502 / 867,114 99.82% 100,725 / 100,906 — 99.5% 646,511 / 649,760 98.13% 43,046 / 43,866
SafariSafari
 — 1.56% 752 / 48,064 1.87% 4,082 / 218,200 — —
EdgeEdge
 100.0% 144,418 / 144,424 99.93% 1,487 / 1,488 — 99.77% 4,296 / 4,306 98.93% 646 / 653
FirefoxFirefox
 95.89% 51,281 / 53,481 99.96% 7,515 / 7,518 — 0.0% 0 / 127 98.81% 6,001 / 6,073

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,410 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,544 / 844,718 99.82% 97,098 / 97,272 — 99.64% 637,517 / 639,791 98.34% 41,986 / 42,694
SafariSafari
 — 99.83% 46,560 / 46,640 99.98% 212,493 / 212,545 — —
EdgeEdge
 100.0% 140,420 / 140,425 100.0% 1,434 / 1,434 — 100.0% 4,221 / 4,221 99.23% 643 / 648
FirefoxFirefox
 99.96% 51,646 / 51,667 99.93% 7,266 / 7,271 — 0.0% 0 / 113 98.3% 5,720 / 5,819