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JSLinux vs Vectras VM: catalog facts
JSLinux	Vectras VM
Free Free to use in the browser.	Free Free, with source code published on GitHub.
Web	Android
Runs entirely in the browser with nothing to install Covers x86, x86_64 and RISC-V systems	Runs full desktop operating systems on Android Based on the widely used QEMU emulator
Slower than a native virtual machine Some systems have long boot times	Emulating a PC on a phone is slow compared with a desktop Android only
Web application	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.