btop++: The Resource Monitor That Finally Speaks GPU

You know the drill: your system feels sluggish, you open top or htop, and you're staring at a wall of text that tells you CPU and memory stats but leaves you guessing about everything else. If you've ever wished your terminal resource monitor understood modern hardware—GPUs included—btop++ is worth a serious look. It's a system resource monitor for Linux, macOS, and the BSDs that brings GPU compatibility into the terminal, and it's built with C++23.

What It Does

btop++ is a terminal-based system resource monitor. At its core, it shows you the usual suspects: CPU usage, memory consumption, running processes, and network activity. But it goes beyond the basics by including GPU monitoring out of the box—something that's surprisingly rare in terminal tools. The README highlights support for Linux, macOS, FreeBSD, NetBSD, and OpenBSD, with continuous build pipelines for each platform, so it's not just a Linux-only affair.

The project is written in C++23, which tells you it's modern and performance-conscious. It's available through a variety of package managers (the README links to Repology, which tracks packaging status across many distributions), and there's also a Snap package for those who prefer that route. The interface is keyboard-driven, with a help menu that lists keybindings, so you can navigate and sort through processes without touching your mouse.

Why It's Cool

Let's be honest: the terminal has no shortage of resource monitors. But btop++ earns its place for a few specific reasons.

• GPU compatibility is the headline feature. Most terminal monitors ignore graphics cards entirely. If you're doing any kind of GPU-accelerated work—machine learning, video encoding, gaming, even just running a modern desktop environment—knowing what your GPU is doing is critical. btop++ brings that into the terminal, which is a genuinely useful differentiator.

• It's cross-platform in a meaningful way. The README shows continuous build badges for Linux, macOS, FreeBSD, NetBSD, and OpenBSD. That's not just "it compiles on these systems"—it's "the project actively tests and maintains builds for all of them." If you hop between macOS and a BSD box, or manage servers across different Unix-likes, having one tool that works everywhere is a real convenience.

• The theming system. The README has a dedicated "Themes" section, which suggests visual customization is a first-class feature. For anyone who spends hours in the terminal, a monitor that matches your color scheme isn't just cosmetic—it makes the tool feel like it belongs in your workflow.

• It's actively maintained and community-supported. The repository includes donation and sponsorship links, a news section with recent updates, and clear contributing guidelines. The news section even addresses AI-generated code in contributions, which shows the maintainer is thoughtful about code quality and transparency.

• The Snap distribution. For Linux users who prefer containerized packages or need an easy install on systems where they don't control the package manager, having a Snap available lowers the barrier to entry considerably.

How to Try It

Getting started with btop++ depends on your platform, but the README makes it straightforward. The easiest path is to check if it's in your distribution's package manager—the Repology badge on the README shows packaging status across many repositories. There's also a Snap package, which you can install with:

snap install btop

For the hands-on crowd, you can compile it from source. The README has dedicated compilation sections for Linux, macOS, FreeBSD, NetBSD, and OpenBSD, so whatever Unix-like system you're on, there's a build path for you. The project also runs continuous builds via GitHub Actions for all five platforms, so you can trust that the source is in a buildable state.

Once it's running, you'll want to check the help menu for keybindings—the README links to it directly, which is a good sign that the interface is discoverable. Spend a few minutes poking around, and you'll find your way to the GPU section, the theme options, and the process sorting.

You can find the repository and all the documentation at github.com/aristocratos/btop.

Final Thoughts

btop++ isn't trying to reinvent the resource monitor—it's trying to bring it up to date. If you're a developer or sysadmin who lives in the terminal and works with GPU-accelerated workloads, this is probably the monitor you've been waiting for. The cross-platform support is genuine, the C++23 foundation means it's built for performance, and the active maintenance suggests it'll keep improving. It's not a flashy tool, but it's a practical one, and sometimes that's exactly what you need. Give it a try on your next slow-system investigation—you might find it becomes your default.

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