Compare software

I2P vs i2pd: catalog facts
I2P	i2pd
Free The open-source software is available without a license fee.	Free Free to download and run.
Windows, macOS, Linux, Android	Windows, Linux, Android, Command line
Every node relays, so the anonymity set grows with participation Built-in anonymous email, torrenting and site hosting	Written in C++ rather than Java Android app and desktop app available
Slow, and reaching the ordinary internet needs an outproxy Smaller network and fewer services than Tor	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 not stated	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 September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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