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Bochs vs JSLinux: catalog facts
Bochs	JSLinux
Free Free and open source.	Free Free to use in the browser.
Windows, macOS, Linux	Web
Full x86 emulation, from 386 to recent x86-64 CPUs Useful for OS development and low-level debugging	Runs entirely in the browser with nothing to install Covers x86, x86_64 and RISC-V systems
Much slower than virtualization-based VM software Configuration is text-based and technical	Slower than a native virtual machine Some systems have long boot times
Downloadable app	Web application
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
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.