Alacritty

What is Alacritty?

Alacritty is a terminal emulator written in Rust that prioritizes speed and simplicity. It uses OpenGL for hardware-accelerated rendering, which makes it one of the fastest options available. The project started around 2016 and has matured into a stable, widely adopted tool. It does not include tabs, split panes, or complex configuration files like some other terminals; instead, it relies on external tiling window managers or terminal multiplexers for those features.

This tool is best suited for developers, system administrators, and power users who prefer a lightweight, distraction-free interface. If you use a tiling window manager like i3, sway, or bspwm, Alacritty fits naturally into that workflow. It is not ideal if you need built-in tab management or if you prefer a GUI-heavy terminal experience with extensive visual customization options out of the box.

Compared to MobaXterm, Alacritty is significantly more minimal. MobaXterm is a full-featured suite with built-in X11 forwarding, SFTP, and multiple tabs, whereas Alacritty is strictly a terminal. You lose the integrated file manager and X11 features but gain raw speed and a cleaner, less cluttered interface. If you relied on MobaXterm's all-in-one nature, you will need to pair Alacritty with tools like tmux and a separate file manager.

Best for: Developers and system administrators who value speed and minimalism over built-in features like tabs and X11 forwarding.

Key features of Alacritty

• OpenGL-based rendering for high performance
• Written in Rust for memory safety
• Minimalist design with no internal tabs
• Supports true color and 24-bit RGB
• Cross-platform support for Linux, macOS, and Windows
• Simple JSON configuration file
• No built-in X11 forwarding or SFTP
• Relies on external multiplexers for splits

Tips for Windows users

Coming from MobaXterm, you will need to adjust your workflow significantly. MobaXterm handles X11 forwarding, SFTP, and tabs in one window, while Alacritty is just a terminal. For tabs and splits, install tmux or zellij. For file transfer, use scp, rsync, or a dedicated file manager like Thunar or Nautilus. For X11 forwarding, you must set up your SSH configuration on the server side and use the -X flag when connecting. Your old MobaXterm session files will not import; you will need to recreate your SSH hosts in your ~/.ssh/config file.