Alacritty, a GPU-accelerated terminal emulator written in Rust

In plain words

Alacritty is a terminal emulator built with Rust and designed to run on the GPU for faster performance. It's aimed at developers who spend significant time in command-line environments and want a responsive alternative to traditional terminal applications. The project prioritizes speed and efficiency by leveraging GPU acceleration, making it stand out among standard terminal emulators that rely solely on CPU processing.

written from the facts on this page · September 2026

From the sources

Alacritty is a blazing fast, GPU accelerated terminal emulator. It’s written in Rust and uses OpenGL for rendering to be the fastest terminal emulator available. Alacritty is available on GitHub in source form. The rest of this post discusses what Alacritty is, why it was built, who it’s targeted at, and some architectural decisions that have enabled its unparalleled performance. I’ll be giving a technical talk at the January 2017 Rust Meetup in SF if you want to learn more. Alacritty is the result of frustration with existing terminal emulators. Using vim inside tmux in many terminals was a particularly bad experience. None of them were ever quite fast enough. Even so,…from blog.jwilm.io

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