Yulee

An Enterprise Instant Messaging Tool Focused on Privacy and Efficiency
In today's fast-paced information era, communication tools must be not only "fast" but also "secure."Yulee is an instant messaging (IM) application specifically designed for organizations that prioritize data security and private deployment. It offers an easy-to-use experience, incredibly fast and stable communication services, and comprehensive end-to-end encryption protection, helping enterprises and teams collaborate worry-free.

Simplified Design, Intuitive Experience
Yulee is committed to providing users with a minimalist, clear, and intuitive operating interface:

Flat Structure: Commonly used functions are clear at a glance.
Diverse Message Formats: Messages support text, images, files, voice, and video.
Multi-Device Sync: Seamlessly switch between devices with automatic message synchronization.
Whether for work collaboration or daily communication, users can quickly get started and respond swiftly.

Uncompromising Security, Always Under Your Control
We understand the severe consequences of data breaches. Therefore, in its security mechanism design,Yulee adheres to a "zero-trust" principle from the ground up, ensuring your messages are always protected:

Full-Link Encryption: Messages are encrypted throughout their journey from sender to receiver, preventing interception.
End-to-End Encryption (E2EE): Sensitive information is transmitted point-to-point; even the server cannot view the content.
Dynamic Key Rotation Mechanism: Enhances resistance to attacks and prevents long-term key exposure risks.
We do not record, store, or upload private content, truly ensuring that information remains in your control and privacy is never compromised.

Extreme Speed, Stable & Efficient Communication
The core of instant messaging is speed.Yulee deploys acceleration nodes in multiple regions globally, combined with an intelligent routing and scheduling system, to ensure low message latency and second-level file uploads and downloads. No matter where you are, communication remains smooth:

Low Average Message Latency
Image/Document/Video Transfer Speeds Comparable to Mainstream Cloud Drives
Stable and Reliable in High-Concurrency Environments
It also supports practical features like group management, @mentions, and unread message statistics to help teams collaborate efficiently and boost productivity.

Flexible Deployment, Complete Data Sovereignty
Yulee supports public cloud, private cloud, and on-premise deployment options to meet diverse enterprise data sovereignty needs:

Seamless Integration: Supports integration with existing enterprise systems (e.g., LDAP, OA, SSO).
Customizable Deployment: Provides containerized (Docker/K8s) images and installation documentation.
On-Premise Control: Data is fully controlled by the enterprise on their own servers.
Your data is yours to command. Data compliance, internal network isolation, and offline operation are all supported, making it suitable for industries with high data sensitivity, such as finance, healthcare, government, and manufacturing.

Core Features:
One-on-one chats, group chats, channel broadcasting
Message read/unread status, @mentions, revoke, favorite
Support for files, images, audio/video, voice messages
Mobile + Desktop synchronization (iOS/Android/Windows/macOS)
Custom emojis
Contact list integration
Optional internal network offline deployment, zero external dependencies