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I2P Zero vs i2pd: catalog facts
I2P Zero	i2pd
Free Free and open source under the BSD-3-Clause and Apache-2.0 licenses.	Free Free to download and run.
Windows, macOS, Linux	Windows, Linux, Android, Command line
Includes a graphical interface and tunnel controls Provides SOCKS and SAM interfaces	Written in C++ rather than Java Android app and desktop app available
It is not a reimplementation of I2P	Useful only for services reachable over I2P Running a well-connected node works best when left on continuously
Downloadable app	Downloadable app
Open source	Closed source
License: BSD-3-Clause OR Apache-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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