Matterhorn – feature-rich Mattermost client

Matterhorn is a feature-rich client for the Mattermost chat system.

The application aims to provide much of the functionality available in the Mattermost web client while offering an efficient keyboard-driven interface. It supports multiple teams and provides extensive facilities for reading, writing and managing conversations.

Users can post, edit, reply to and delete messages, participate in threaded discussions, upload and download attachments and add emoji reactions. Matterhorn renders Markdown and can apply syntax highlighting to fenced code blocks, while integration with an external editor is available for composing messages.

The application also provides extensive configuration options covering key bindings, colour themes, notifications and other interface behaviour.

This is free and open source software.

Key Features

• Connects to Mattermost servers.
• Supports multiple Mattermost teams.
• Creates, deletes and manages channels.
• Posts, edits, replies to and deletes messages.
• Supports threaded conversations.
• Renders Markdown content.
• Uploads and downloads file attachments.
• Adds and removes emoji reactions.
• Provides username, channel, command and emoji completion.
• Supports configurable keyboard bindings and colour themes.
• Offers syntax highlighting for fenced code blocks.
• Supports spell checking and external editors.
• Provides configurable notification scripts.

Website: github.com/matterhorn-chat/matterhorn
Support:
Developer: Matterhorn developers
License: BSD 3-Clause License

Matterhorn is written in Haskell. Learn Haskell with our recommended free books and free tutorials.

Explore our carefully curated directory of recommended free and open source software, covering every major software category. The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form.