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JSLinux vs v86: catalog facts
JSLinux	v86
Free Free to use in the browser.	Free Free and open source.
Web	Web
Runs entirely in the browser with nothing to install Covers x86, x86_64 and RISC-V systems	Runs whole operating systems in a browser tab x86-to-WebAssembly JIT for better speed
Slower than a native virtual machine Some systems have long boot times	Slower than native virtualization Best suited to older or lightweight operating systems
Web application	Web application
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Not stated if it 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.