Commet: A Privacy-First Matrix Chat Client with Social Toolkit Features

In an era where messaging apps increasingly monetize user data and attention, Commet emerges as a privacy-respecting alternative built on the open Matrix protocol. This new chat client distinguishes itself not just through its commitment to privacy, but by thoughtfully integrating social features that enhance connection without compromising user control.

Privacy by Design

At its core, Commet prioritizes user privacy through several key architectural decisions. The client supports end-to-end encryption for chat rooms, ensuring that only intended recipients can read messages. Voice and video calls are handled through WebRTC for one-on-one conversations and MatrixRTC with LiveKit for voice channels, maintaining encryption throughout.

A particularly clever privacy feature is Commet's approach to GIF search. Rather than sending users directly to third-party GIF services like Tenor—which could track searches and viewing habits—Commet proxies these requests. When a user selects a GIF, it's uploaded to their homeserver first, breaking the tracking chain while still providing the fun, expressive functionality users expect.

Multi-Account Support Reimagined

One of Commet's standout features is its innovative multi-account support. Unlike traditional clients that require manual switching between accounts, Commet allows users to be logged into multiple accounts simultaneously. These accounts "blend together" in the interface, eliminating the friction of context-switching while maintaining clear separation of conversations and data.

This approach is particularly valuable for users who maintain separate identities for work, personal life, or different communities. The seamless integration means you can participate in conversations across all your accounts without losing context or breaking your flow.

Beyond Basic Chat: The Social Toolkit

Where Commet truly differentiates itself is in its expansion beyond traditional chat functionality. The client includes a shared calendar feature, making it easy to plan events with friends or community members directly within your chat environment. This integration eliminates the need to switch between multiple apps when coordinating gatherings.

Similarly, the shared album feature provides a dedicated space for uploading and organizing photos from events or shared experiences. This creates a natural repository for memories that's integrated with your conversations rather than siloed in a separate photo service.

Customization and Expression

Commet recognizes that personal expression matters in digital communication. The client supports custom emoji uploads, allowing users to import emoji packs in bulk from folders or even convert Signal sticker packs. This flexibility enables communities to develop their own visual language and inside jokes.

The threading feature deserves special mention. By allowing users to reply to messages in separate threads, Commet helps keep main chat channels focused while still enabling deeper discussions. This addresses one of the perennial challenges in group chat: balancing active conversation with focused discussion.

Open Source Foundation

All of Commet's code is publicly available on GitHub, inviting community involvement and scrutiny. This transparency aligns with the privacy-first ethos and allows technically-minded users to verify security claims or contribute improvements.

The Matrix Advantage

By building on Matrix, Commet inherits the benefits of a decentralized, open protocol. Users aren't locked into a single provider and can choose their homeserver, or even self-host. This decentralization is fundamental to Commet's privacy approach—users maintain control over their data rather than surrendering it to a centralized entity.

Looking Forward

The combination of privacy features, social toolkit functionality, and Matrix's decentralized architecture positions Commet as a compelling option for users seeking more from their messaging experience. As concerns about data privacy and platform lock-in continue to grow, tools like Commet that respect user autonomy while enhancing connection will likely find an enthusiastic audience.

For those interested in exploring Commet, the client is available to open in browser, making it immediately accessible without installation. The project's documentation provides additional details on features and setup, and the open-source nature means the community can actively shape its evolution.

In a messaging landscape dominated by feature-rich but privacy-compromising options, Commet offers a refreshing alternative that proves you don't have to sacrifice functionality for privacy—or vice versa.