The Invisible Internet Project (I2P) is a powerful privacy tool that creates a secure and anonymous layer of the Internet. Think of it as a special network within the regular Internet that keeps your online activities private. Unlike regular browsing, where your data travels in the open, I2P wraps your information in multiple layers of strong encryption—like putting a letter inside several sealed envelopes.
Key Features of Invisible Internet Project (I2P)

The backbone of I2P is its peer-to-peer (P2P) architecture, which means the network is built by its users rather than depending on central servers. This makes it extremely hard to shut down or compromise. Here are some important features:
- End-to-end encryption: Your data is protected from start to finish
- Anonymous hosting: Create private websites with .i2p addresses
- Secure file sharing: Exchange files safely through P2P connections
- Private communication: Use encrypted email, chat, and messaging
How I2P Protects Your Privacy
Invisible Internet Project uses garlic routing, which bundles multiple encrypted messages together. This makes it nearly impossible for anyone to track what you’re doing online. The network regularly changes the path your data takes, making it even harder for others to spy on your activities.
Getting Started with Invisible Internet Project (I2P)
To join the I2P network, you’ll need to install the I2P router software. This free program handles all the complex work of:
- Encrypting your data
- Finding secure paths through the network
- Connecting you to other I2P users safely
Common Uses for I2P
I2P supports many types of online activities:
- Secure browsing: Access websites privately
- Anonymous websites: Host your .i2p sites
- Protected file sharing: Use torrents and other P2P services
- Private communication: Send emails and chat securely
- Voice calls: Make encrypted VoIP calls
I2P vs Other Privacy Tools
While tools like Tor are better known, I2P offers some unique advantages. Its network is designed specifically for hosting services within the network, making it especially good for people who want to run private websites or services.
License: Freeware.
Changes in I2P 2.8.0
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Size – 24 MB