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Brook vs Leaf: catalog facts
Brook	Leaf
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Linux, Android, iOS, Self-hosted, Command line	Windows, Command line
Clients for desktop, mobile and OpenWrt routers Programmable through shareable scripts	Wide range of proxy protocols and transports QUIC, TLS, WebSocket and Reality support
Requires running your own server Configuration assumes networking knowledge	No graphical interface; configured by file No release builds published on GitHub
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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