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86Box vs v86: catalog facts
86Box	v86
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux	Web
Accurate low-level emulation of period PC hardware Wide range of emulated machines and peripherals	Runs whole operating systems in a browser tab x86-to-WebAssembly JIT for better speed
Needs original BIOS ROMs and OS media to be useful Low-level emulation needs a fast host CPU	Slower than native virtualization Best suited to older or lightweight operating systems
Downloadable app	Web application
Open source	Open source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	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.