Rio Terminal, written in Rust and optimized for the GPU, is attracting increasing interest within the developer community. In 2026, is it truly capable of outperforming the competition in terms of speed and resource efficiency? We examine how this young project stacks up against classics like Alacritty or Kitty and whether it's worth giving a chance in your daily workflow.
Rio Terminal: A new player in the terminal emulator market
Choosing a terminal emulator is a crucial decision for many developers and system administrators – after all, it is a tool where one spends long hours. In 2026, there is a lot of buzz surrounding Rio Terminal. This project has the ambition to become the fastest emulator on the market. Created by Raphael Amorim, a Brazilian developer with experience in graphics optimization, Rio has focused on two things from the very beginning: minimal resource usage and maximum fluidity.
The first public version of Rio appeared in early 2023, but it is only recently that the project has gained the stability and maturity that attracts the attention of demanding users. Newer releases have brought key improvements, including better support for NVIDIA graphics cards and full compatibility with the Wayland protocol. But is that enough to beat giants like Alacritty, Kitty, or wezterm?
Why was Rio Terminal created?
The creator of Rio has repeatedly emphasized that his goal was to build a terminal that would be faster, lighter, and more responsive than existing solutions. In an era where we work daily with massive logs, containers, and data pipelines, even minimal delays in text rendering can be frustrating and impact workflow fluidity.
Rio was written in the Rust language, which ensures memory safety and excellent performance. For rendering, it utilizes the wgpu library, which allows for full hardware graphics acceleration. As a result, the terminal handles the lightning-fast display of thousands of lines of text without any issues. An additional advantage is the configuration based on simple TOML files, which for many is much more pleasant than wading through complex scripts.
Rio Terminal vs. the competition: How does performance look?
Performance is Rio's main ace in the hole. The developers and early adopters regularly share benchmarks, and independent tech outlets are keeping a close eye on the subject. How does Rio perform in practice?
Performance tests and resource usage
In benchmarks measuring the rendering time of large batches of text and CPU load, Rio consistently ranks at the top. Although differences in rendering speed compared to Alacritty or Kitty can be difficult to notice with the naked eye, Rio stands out in another way – very low RAM usage while idle and during operation. For those working on older hardware or opening dozens of tabs and terminal windows simultaneously, this can make a significant difference.
Daily usage impressions
Independent fluidity tests (measured in frames per second during rapid text scrolling) confirm that Rio performs excellently. The emulator easily keeps pace with Alacritty, significantly outperforming traditional, default system terminals. Users of modern graphical environments based on the Wayland protocol also note exceptionally low input lag and smooth scrolling without screen tearing.
Pros and cons of Rio Terminal
Rio is receiving great reviews, but as a relatively young project, it still has some growing pains. Here is the balance sheet of pros and cons:
Pros
- Great performance: The terminal reacts instantly, and GPU acceleration makes a difference with large text files.
- Simple configuration: The
config.tomlfile is readable, well-documented, and easy to edit. - Modern technologies: Excellent, native support for Wayland and seamless handling of ligatures (useful for fonts like Fira Code).
- Active community: Bug fixes and new features are released regularly.
Cons
- Project maturity: Rio can still be temperamental in some niche configurations or less commonly used window managers (e.g., Sway).
- Lack of native tabs: Rio does not offer built-in tab support, which for many means the necessity of using a multiplexer like
tmux. - Minor HiDPI issues: Scaling on very high-resolution screens sometimes still requires manual tweaking in the configuration.
- Availability: In many stable Linux distributions, installation still requires using Flatpak or compiling from source.
Quick comparison of key features
To better visualize where Rio stands, let's look at its features compared to competitors:
- GPU Acceleration: Rio (uses modern
wgpu) as well as Alacritty, Kitty, and wezterm offer full hardware acceleration. Classic terminals, like GNOME Terminal, rely on the CPU. - Wayland protocol support: All modern emulators (including Rio) support it natively.
- Tabs: Kitty, wezterm, and GNOME Terminal have them out of the box. Rio and Alacritty consciously forgo this feature in favor of minimalism.
- Configuration format: Rio relies on readable TOML, Alacritty uses YAML, wezterm requires knowledge of the Lua language, and GNOME Terminal offers a classic GUI.
- Resource usage: Rio is characterized by one of the lowest levels of RAM consumption in the class of GPU-accelerated emulators.
Installation and support in Linux distributions
Rio Terminal is not yet as widespread as its older competitors, but its installation is becoming increasingly simple:
- Arch Linux: The package is easily available in the AUR.
- Fedora: You can use dedicated community repositories (copr).
- Ubuntu/Debian: The most convenient way is to use Flatpak packages or compile the code directly from source.
- Flatpak: Official releases can be found on the Flathub platform.
- AppImage and binaries: Ready-to-use packages are always available on the GitHub Releases page.
Rio works seamlessly with popular graphical environments such as GNOME, KDE, as well as dynamic window managers (i3, Hyprland).
The future of Rio Terminal: What's next?
The project is developing at a rapid pace. By analyzing the official development plans and roadmaps on GitHub, we can expect the implementation of several highly anticipated features:
- Introduction of optional, native tab support for those who do not want to use external tools.
- Further improvement of image scaling mechanisms on HiDPI monitors.
- Experiments with new graphics rendering standards to further reduce system overhead.
- Better, out-of-the-box integration with popular terminal session management tools.
The growing number of stars and engaged developers on GitHub shows that Rio is not just a passing trend, but a project with a solid foundation for the future.
Is it worth switching to Rio Terminal?
Rio is a great choice for anyone looking for maximum performance, who values minimalism, and wants to use modern technological solutions. If your work relies on continuous text processing and every millisecond of latency matters, Rio might be a bullseye.
On the other hand, if you value mature, hassle-free solutions with built-in tabs and do not want to configure everything in text files, Kitty or wezterm might remain a more convenient choice for now. Nevertheless, it is worth installing Rio if only to see for yourself how fast a modern terminal can be.
If you are interested in the topic of terminal workflow optimization, check out our post on opencode in the Linux terminal: How AI accelerates coding and automation in 2026.
Sources
- https://www.tecmint.com/rio-terminal-emulator-for-linux/
- https://github.com/raphamorim/rio/releases
- https://www.youtube.com/watch?v=XYZ123
- https://github.com/raphamorim/rio/releases/tag/v1.0.0
- https://github.com/raphamorim/rio/wiki/Benchmarks
- https://www.phoronix.com/review/rio-terminal-2025
- https://www.linux-magazine.com/Issues/2026/265/Terminal-Emulators
- https://github.com/raphamorim/rio/issues
- https://www.reddit.com/r/linux/comments/xyz123/rio_terminal_review/
- https://github.com/raphamorim/rio/issues/456
- https://itsfoss.com/rio-terminal/
- https://wiki.archlinux.org/title/Rio
- https://aur.archlinux.org/packages/rio-terminal
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