Trillian

Trillian is a multi-protocol instant messaging client for Windows developed by Cerulean Studios. It allows users to manage different IM services, such as Facebook Chat, Google Chat, and XMPP/Jabber, from one interface.

Today, it focuses more on its own messaging network, Trillian (IM), while maintaining limited support for legacy protocols and offering secure enterprise messaging solutions.

Features

Multi-Protocol Messaging: Connect to various chat services or use Trillian’s own IM network.

Cross-Platform Sync: Conversations sync in real-time across Windows, macOS, Android, iOS, and the web.

Message History: Searchable conversation logs are stored securely in the cloud.

Privacy-Focused: Offers TLS encryption, no ads, and minimal metadata logging.

Business Tools: HIPAA-compliant messaging, centralized admin controls, and secure team communication.

Customizations: Skins, themes, and status messages for a personalized look.

User Interface

Trillian's UI is clean, minimalist, and user-friendly. The layout divides contacts, chat windows, and settings into a structured sidebar format.

Theme options let users choose light or dark modes, and the chat interface supports inline images, file transfers, and timestamped messages.

It feels snappy and efficient, ideal for both casual users and professionals.

Installation and Setup

• Run the setup file and follow the guided installation steps.
• Create or sign in to a Trillian account.
• Optionally, connect other IM services or invite contacts.
• Setup typically takes under 5 minutes.

How to Use

Add or invite contacts to your Trillian list.

Start a conversation by clicking on a contact's name.

Use text chat, file sharing, or group messaging as needed.

Access message history or switch devices with synced data.

For business users, use the admin console to manage teams, compliance settings, and users.

FAQ

Is Trillian still supported in 2025?
Yes, the program is still actively maintained and updated for both individuals and business users.

Can I use Trillian without the cloud?
You can use it locally, but syncing and message history features require cloud access.

Does Trillian support video or voice calls?
No, it focuses on text-based messaging and does not include voice or video calling.

Is Trillian secure?
Yes, it uses TLS encryption, stores minimal metadata, and offers HIPAA-compliant options for healthcare.

Can I integrate Trillian with Slack or Teams?
Not directly. This software is a standalone platform, but you can run it alongside other apps.

Alternatives

Pidgin – Open-source multi-protocol IM client.

Slack – Team collaboration tool with more advanced integrations.

Telegram Desktop – Secure, fast messaging with cloud sync.

Signal Desktop – Privacy-focused encrypted messaging app.

Pricing

Free Plan: Basic messaging features, limited support.

Pro Plan ($3/month): Message history, support, themes, cloud sync.

Business Plan: Custom pricing for team features, compliance, and admin tools.

System Requirements

• OS: Windows 11, 10, 8 or 7
• RAM: 2 GB minimum
• Storage: 100 MB
• Internet: Required for sync and cloud features

PROS

• Lightweight and fast
• Unified messaging across devices
• Strong privacy policies
• HIPAA compliance for healthcare
• Customizable interface

CONS

• No voice/video call support
• Limited integration with modern platforms
• Legacy IM protocol support is outdated
• User base is smaller than major competitors

Conclusion

Trillian is a reliable and secure messaging client that caters to users who want a lightweight and privacy-respecting IM experience. While its heyday as a multi-network messenger has passed, it has found a niche in secure enterprise communication and personal use for those wanting simplicity and cross-device syncing.

Also Available: Download Trillian for Mac