Trillian

Trillian Windows 6.6.0 Build 17

Overall, Trillian is a user friendly application that has brought an evolution in the world of instant messaging. It provides support for various social networking sites, hence the users can easily chat with the users of Trillion services and social sites through single software window.

Download for Windows 6.6.0 Build 17 · 33.65 MB
Windows updated July 20, 2026
6,283 downloads
Windows size 33.65 MB
4.0

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Very good 1 user ratings
Listed in our directory since 2018
Developer: trillian.im
Page updated August 11, 2026

Overview

Trillian is a messaging client built around a Trillian account, contact list, direct conversations, group chats, file transfers, and synchronized history. A personal account connects to the public Trillian service. An organization can instead issue business accounts through Trillian’s hosted service or its own server. The same interface can therefore represent a public identity or a company-controlled identity, but the account owner and recovery path differ.

Know the account

A personal Trillian username has no company domain and signs in through the public service. A business username normally carries an organization domain, and its administrator controls the account. If a company runs its own Trillian Server, the public vendor cannot reset that password because it does not hold the account data.

The sign-in screen can start the account as visible or invisible. Invisible presence makes the user appear offline to most contacts, while an allow list can reveal that state to selected people. Do not disturb goes further on the local device by suppressing sounds and notifications, even for buzzes or mentions.

Organize one person

Groups arrange contacts in the contact list. Moving a name between groups changes its visual location without changing the account or conversation. A metacontact has a different purpose: it combines several service identities that belong to one person into one logical entry.

Merging two unrelated people into a metacontact creates an identity error rather than a shared group. The combined entry may then present several destinations under one name, which makes the chosen service important before sending. Removing the metacontact does not mean deleting each underlying contact when the user chooses the organizational action correctly.

Read older messages

Trillian loads earlier conversation history as the user scrolls upward. The separate history viewer adds a calendar and text search, plus a view of files and images exchanged with a contact. This separates a remembered date or phrase from the current chat window.

The phrase infinite history describes the scrolling interface, not a guarantee that every service or administrator retained every message forever. A business deployment can apply its own storage policy, and a third-party network may keep different records. A missing old message can therefore come from retention or synchronization rather than the search field.

Separate chat networks

Trillian’s own network handles its usernames, group chats, and multi-device routing. Third-party integrations depend on another network permitting Trillian to connect. Historical connectors for AIM, Google Talk, and Facebook Messenger stopped working after those operators retired the service or blocked third-party access.

An old help entry or contact name does not restore a retired network. People moving from those services need a Trillian identity, an available XMPP destination, or another supported route. This dependency is different from a temporary sign-in fault because no client update can reconnect to a server platform that no longer accepts the protocol.

Follow the interruption

Presence shows an availability state, not proof that a person is reading the device. Automatic Away can change after inactivity, and Invisible can resemble Offline. Trillian can draw a line where the user last left a conversation and can show a timestamp for each message, which helps distinguish unread history after returning to the app.

Notifications also belong to each device. Muting one conversation prevents its local alert noise without removing the conversation or changing another participant’s settings. A business administrator may impose additional policy, while a personal account retains the user’s own configuration.

Files and images remain attached to conversation history when the service stores them, but their availability follows the account and deployment. Before leaving a company-hosted account, the user should not assume that signing into a personal account will carry the old organization’s contacts or archive with it.

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