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Alacritty - A fast, cross-platform, OpenGL terminal emulator
About
Alacritty is a modern terminal emulator that comes with sensible defaults, but allows for extensive configuration. By integrating with other applications, rather than reimplementing their functionality, it manages to provide a flexible set of features with high performance. The supported platforms currently consist of BSD, Linux, macOS and Windows.
The software is considered to be at a beta level of readiness; there are a few missing features and bugs to be fixed, but it is already used by many as a daily driver.
Precompiled binaries are available from the GitHub releases page.
Features
You can find an overview over the features available in Alacritty here.
Further information
- Announcing Alacritty, a GPU-Accelerated Terminal Emulator January 6, 2017
- A short talk about Alacritty at the Rust Meetup January 2017 (starts at 57:00)
- Alacritty Lands Scrollback, Publishes Benchmarks September 17, 2018
- Version 0.3.0 Release Announcement April 07, 2019
- Version 0.5.0 Release Announcement July 31, 2020
Installation
Alacritty can be installed by using various package managers on Linux, BSD, macOS and Windows.
Prebuilt binaries for macOS and Windows can also be downloaded from the GitHub releases page.
On Windows, Alacritty requires winpty to emulate UNIX's PTY API for versions
older than Windows 10 (October 2018 Update) and Microsoft's VC++
redistributable. The winpty agent (winpty-agent.exe) must be in the same
directory as the Alacritty executable and is available through the
GitHub releases page.
For everyone else, the detailed instructions to install Alacritty can be found here.
Configuration
You can find the default configuration file with documentation for all available fields on the GitHub releases page for each release.
Alacritty doesn't create the config file for you, but it looks for one in the following locations:
$XDG_CONFIG_HOME/alacritty/alacritty.yml$XDG_CONFIG_HOME/alacritty.yml$HOME/.config/alacritty/alacritty.yml$HOME/.alacritty.yml
Windows
On Windows, the config file should be located at:
%APPDATA%\alacritty\alacritty.yml
Contributing
A guideline about contributing to Alacritty can be found in the
CONTRIBUTING.md file.
FAQ
Is it really the fastest terminal emulator?
Benchmarking terminal emulators is complicated. Alacritty uses vtebench to quantify terminal emulator throughput and manages to consistently score better than the competition using it. If you have found an example where this is not the case, please report a bug.
Other aspects like latency or framerate and frame consistency are more difficult to quantify. Some terminal emulators also intentionally slow down to save resources, which might be preferred by some users.
If you have doubts about Alacritty's performance or usability, the best way to quantify terminal emulators is always to test them with your specific usecases.
Why isn't feature X implemented?
Alacritty has many great features, but not every feature from every other terminal. This could be for a number of reasons, but sometimes it's just not a good fit for Alacritty. This means you won't find things like tabs or splits (which are best left to a window manager or terminal multiplexer) nor niceties like a GUI config editor.
IRC
Alacritty discussions can be found in #alacritty on freenode.
License
Alacritty is released under the Apache License, Version 2.0.