Anonymous messaging over a decentralized onion-routed network
Session is an open-source, end-to-end encrypted messenger that needs no phone number or email: an account is just a randomly generated Session ID. Messages are relayed through a decentralized network of community-operated nodes using onion routing, which hides IP addresses and limits metadata. It supports one-to-one chats, small private groups and larger communities on desktop and mobile.
- features
- 5
- alternatives
- 9
- platforms
- 5
- Updated
- Oct 12, 2026
Features
Our take
Pros
- No phone number or email: an account is just a random Session ID
- Onion routing hides IP addresses and limits metadata
- Decentralized network of community-operated nodes
Cons
- Messages can arrive more slowly than on centralized apps
- Small user base compared with mainstream messengers
- Losing your recovery phrase means losing your account
Editorial assessment by the Alternatives.tools team, based on what the product is known for. Not a user review.
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ElementFreemiumOpen sourceSecure, decentralized messaging built on the Matrix protocol
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TelegramFreemiumOpen sourceCloud-based messaging with large groups, channels and bots
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User reviews
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