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Codec: avc1.420415

3.36% Encoder Support
72,239 of 2,148,596 sessions supported encoding
99.8% Decoder Support
2,093,290 of 2,097,401 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,596 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 242 / 866,962 0.15% 151 / 100,774 — 0.31% 1,983 / 649,772 0.89% 389 / 43,807
SafariSafari
 — 1.5% 723 / 48,065 1.79% 3,907 / 218,521 — —
EdgeEdge
 0.03% 41 / 143,686 0.07% 1 / 1,465 — 0.0% 0 / 4,279 0.32% 2 / 631
FirefoxFirefox
 95.73% 51,507 / 53,802 99.9% 7,300 / 7,307 — 0.0% 0 / 130 98.02% 5,798 / 5,915

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,401 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,187 / 844,382 99.82% 96,979 / 97,154 — 99.65% 637,528 / 639,771 98.31% 41,893 / 42,615
SafariSafari
 — 99.87% 46,633 / 46,696 99.98% 212,881 / 212,932 — —
EdgeEdge
 99.99% 139,690 / 139,698 100.0% 1,427 / 1,427 — 100.0% 4,203 / 4,203 99.52% 624 / 627
FirefoxFirefox
 99.96% 51,955 / 51,974 99.97% 7,078 / 7,080 — 0.0% 0 / 123 98.31% 5,593 / 5,689