Introduction:

TangSengDaoDao is a lightweight, high-performance, security-focused open-source instant messaging system, dedicated to private deployment.

Features:

• 🆓 Open Source & Free: Server-side code, APP code, Web/PC-side code are all open source under the Apache 2.0 open-source license (commercially usable), no one can control you.
• 🔏 Private Deployment: All programs and data are on your own server. No need to worry about data leakage or data being used for other purposes.
• 🆚 Guaranteed Message Delivery: Uses tcp + ack mechanism to ensure message delivery, supports offline messages, and message roaming.
• 🔐 Content Security: Message transmission uses a private binary encryption protocol, DH + streaming encryption, to prevent message content leakage.
• 💽 Permanent Message Storage: Messages support permanent storage, thanks to WuKongIM's proprietary messaging db. Permanent storage doesn't affect performance, just consumes some disk space.
• 📱 Multi-Device Message Sync: Supports 1 mobile end, multiple Web/PC ends online simultaneously, and real-time message synchronization between multiple devices.
• 📟 Full Platform Support: iOS, Android, Windows, MAC, Ubuntu, Web

Note:

In the self-deployed client, new users must use the iOS/Android app for registration and password recovery is not available.
The open source version has a lot of features that are not available and Tailchat is more recommended
Deployment Tutorial：https://enblog.fuyiran.link/Technology/13.html

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