Irssi runs as a modular text-mode chat client with built-in IRC and additional protocol support through plugins.
Claws Mail
Claws Mail provides an email client described by its site as lightweight.
About Claws Mail
Claws Mail is a lightweight, fast email client and news reader built on GTK+, intended for Linux and macOS users. It features a familiar interface for users of other popular email clients, with nearly all commands accessible via keyboard shortcuts. Messages are stored in the standard MH format for fast access and data security, and users can import or export emails from nearly any other email client. Additional functionality like an RSS aggregator, calendar, and laptop LED control is available via plugins, and the software is distributed under the GPL license.
Key features
- Lightweight, fast email client and news reader built on GTK+
- Familiar interface for users of other popular email clients
- Keyboard shortcuts for nearly all commands
- Standard MH message format for fast access and data security
- Import/export emails from nearly all other email clients
- Plugin support for RSS aggregator, calendar, and extra features
Best for: It is best suited for Linux and macOS users seeking a lightweight, fast, keyboard-friendly email client with a familiar interface.
Good for
- Lightweight design with quick response per official description
- Interface familiar to users of other popular email clients
- Supports importing and exporting emails from nearly all other email clients
Watch out for
- No official GitHub repository for source access or community contributions
Claws Mail at a glance
- Website
- claws-mail.org
- Category
- Software & Utilities › Linux & Mac Apps
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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