Alacritty

Alacritty is a GPU-accelerated terminal emulator that does one thing and does it well: render text fast. It uses OpenGL to push terminal rendering onto your GPU, which means scrolling through a million-line log file doesn't stutter, output from `cargo build` appears instantly, and input latency is measured in single-digit milliseconds. Alacritty was created by Joe Wilm in 2017 with a specific philosophy: a terminal emulator should handle text rendering and nothing else. No tabs. No splits. No built-in multiplexer. No dropdown mode. If you want those features, use tmux or Zellij—tools that are better at window management than any terminal emulator could be. This opinion is polarizing. People who pair Alacritty with tmux love it. People who want an all-in-one terminal like iTerm2 or Warp find it frustrating. Configuration is a single TOML file at ~/.config/alacritty/alacritty.toml. Every setting—fonts, colors, keybindings, padding, cursor style, scrollback size—is defined in this file. Changes are applied live: save the file and Alacritty updates immediately without restarting. This makes it ideal for dotfiles management—your terminal config is a text file you can version with Git, diff, and sync across machines. Alacritty runs on macOS, Linux, Windows, and FreeBSD. It's written in Rust, which contributes to its small binary size, low memory footprint, and absence of runtime crashes. On macOS with Apple Silicon, Alacritty uses Metal for GPU rendering and starts in under 50ms. For developers who care about terminal performance and are comfortable configuring tools through text files, Alacritty is the fastest terminal available.