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Codec: avc1.4d1029

98.73% Encoder Support
2,120,889 of 2,148,242 sessions supported encoding
99.81% Decoder Support
2,092,938 of 2,097,013 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,242 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,119 / 866,372 99.76% 100,229 / 100,470 — 97.36% 632,912 / 650,041 96.8% 42,354 / 43,755
SafariSafari
 — 99.74% 48,069 / 48,192 99.98% 218,226 / 218,274 — —
EdgeEdge
 99.86% 144,052 / 144,256 100.0% 1,489 / 1,489 — 99.21% 4,142 / 4,175 99.56% 674 / 677
FirefoxFirefox
 95.88% 51,337 / 53,543 99.93% 7,432 / 7,437 — 0.0% 0 / 124 98.97% 5,963 / 6,025

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,013 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 843,418 / 843,592 99.81% 96,652 / 96,839 — 99.65% 637,928 / 640,189 98.39% 41,856 / 42,543
SafariSafari
 — 99.82% 46,705 / 46,789 99.98% 212,695 / 212,744 — —
EdgeEdge
 99.99% 140,207 / 140,215 100.0% 1,443 / 1,443 — 100.0% 4,101 / 4,101 99.7% 670 / 672
FirefoxFirefox
 99.95% 51,700 / 51,725 99.92% 7,220 / 7,226 — 0.0% 0 / 111 98.35% 5,707 / 5,803