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