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V2Ray vs sing-box: catalog facts
V2Ray	sing-box
Free Free to use; the source code is published on GitHub.	Free Free and open source under the GPL.
Self-hosted, Command line	Windows, macOS, Linux, Android, Command line
Flexible platform with several protocols and transports Works as both server and client	One binary covering WireGuard, Shadowsocks, VMess, Trojan, Hysteria and more A routing engine that picks an outbound per connection by domain, IP or process
No graphical interface; configuration is done in files Requires your own server to be useful	JSON configuration that is genuinely complex to write correctly Documentation assumes you already know the protocols involved
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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