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Trillian

Trillian — Free Download. Cross-platform instant messaging client
Unified messaging client to communicate through multiple protocols and services from a single application. Synchronizes conversations between mobile and desktop devices.
★★★★★
5.0(1 ratings)

Download Trillian (Official links)
File size: 33.4 MB
The latest version of Trillian is: 6.6.43
Operating system: Windows, Linux, MacOS, Android, iOS
Languages: Spanish, English
Developer: Cerulean Studios
Price: $0.00 USD

  • Unified Messaging. Trillian's primary function is consolidating contacts and conversations from different messaging services into a single interface. It supports protocols such as XMPP, OSCAR for AIM and ICQ, and Yahoo Messenger. It allows managing multiple accounts simultaneously without needing to run separate clients.
  • Continuous Synchronization. The client's architecture keeps the state of conversations synchronized across all of a user's devices. Messages sent from a phone appear immediately in the active desktop session. Chat history is available on all access points.
  • Smart Notifications. The alert system detects user activity on different devices. It suppresses push notifications on the mobile phone when the user is active on the desktop version. It avoids duplication of audible and visual alerts.
  • Secure Communication. All data transmissions between the client and Trillian's servers use TLS encryption. This security layer protects message content from interception by third parties on the network. Account authentication is also carried out through encrypted channels.
  • File Transfer. The application includes the ability to send and receive files directly between contacts. It supports transfer via peer-to-peer connections when possible, or through server relay. It shows the transfer progress and allows download management.
  • Contact Customization. Allows organizing the contact list into custom groups defined by the user. It offers options to sort entries by name, connection status, or service. It includes functions to assign specific avatars and aliases to each contact.
  • Integrated Search. Incorporates a search field within the interface to locate specific contacts or messages within the history. It filters results in real-time as the query is typed. The search covers names, email addresses, and fragments of past conversations.
  • Privacy Management. Provides granular controls over the visibility of your connection status. The user can appear offline to specific contacts while remaining active for others. It includes allow and block lists at both account and contact levels.
  • History Logging. Locally stores the complete conversation history in the client's database. Messages are indexed for later retrieval. The history feature maintains logs across sessions and device restarts.
  • Interface Customization. Offers visual themes to modify the application's appearance. Allows adjusting fonts, colors, and notification sounds. The layout of panels and elements in the main window is configurable by the user.
  • Group Chat. Supports the creation of multi-party chat rooms for multiple contacts. Maintains persistent group sessions that members can leave and rejoin. Manages the list of participants and their permissions within the room.
  • System Integration. The desktop version includes integrations with the operating system, such as system tray notifications and keyboard shortcuts. It supports dragging and dropping files from the file explorer into the chat window.

Trillian's development began in the year 2000 by the American company Cerulean Studios. The founding team included Scott Werndorfer and John Hering. The first public version was released in July 2000. The original client was developed for the Microsoft Windows operating system. The technical implementation used the C++ programming language for the core and user interface. Subsequently, it expanded to other platforms such as macOS, Android, iOS, and web versions. The architecture incorporated its own transit servers to handle synchronization between devices and provide relay services for obsolete protocols.


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