btop README

The project's README from github.com/aristocratos/btop. As one markdown file: README.md.

btop++

Packaging status

Linux macOS FreeBSD NetBSD OpenBSD Usage c++23 latest_release Donate Sponsor Coffee btop Continuous Build Linux Continuous Build macOS Continuous Build FreeBSD Continuous Build NetBSD Continuous Build OpenBSD

Index

If you are considering donating, please first consider donating to:

News

22 March 2026

Updated contributing guidelines for AI generated code:

4 December 2025

Since there is a increasing amount of AI generated/assisted PR's, the following guidelines have been added to CONTRIBUTING.md:

22 September 2024

Btop release v1.4.0

Intel GPU support added, note that only GPU utilization, power usage and clock speed available to monitor. Thanks to @bjia56 for contributions.

NetBSD support added. Thanks to @fraggerfox for contributions.

See CHANGELOG.md and latest release for detailed list of new features, bug fixes and new themes.

7 January 2024

Btop release v1.3.0

Big release with GPU support added for Linux and platform support for OpenBSD. Big thanks to @romner-set (GPU support) and @joske (OpenBSD support) for contributions. And a multitude of bugfixes and small changes, see CHANGELOG.md and latest release for detailed list and attributions.

See news entry below for more information regarding GPU support.

25 November 2023

GPU monitoring added for Linux!

Compile from git main to try it out.

Use keys 5, 6, 7 and 0 to show/hide the gpu monitoring boxes. 5 = Gpu 1, 6 = Gpu 2, etc.

Gpu stats/graphs can also be displayed in the "Cpu box" (not as verbose), see the cpu options menu for info and configuration.

Note that the binaries provided on the release page (when released) and the continuous builds will not have gpu support enabled.

Because the GPU support relies on loading of dynamic gpu libraries, gpu support will not work when also static linking.

See Compilation Linux for more info on how to compile with gpu monitoring support.

Many thanks to @romner-set who wrote the vast majority of the implementation for GPU support.

Big update with version bump to 1.3 coming soon.

28 August 2022

btop4win

First release of btop4win available at https://github.com/aristocratos/btop4win

More...
16 January 2022

Release v1.2.0 with FreeBSD support. No release binaries for FreeBSD provided as of yet.

Again a big thanks to @joske for his porting efforts!

Since compatibility with Linux, macOS and FreeBSD are done, the focus going forward will be on new features like GPU monitoring.

13 November 2021

Release v1.1.0 with macOS support. Binaries in continuous-build-macos are only x86 for now. macOS binaries + installer are included for both x86 and ARM64 (Apple Silicon) in the releases.

Big thank you to @joske who wrote the vast majority of the implementation!

30 October 2021

Work on the OSX [macOS] and FreeBSD branches, both initiated and mostly worked on by @joske, will likely be completed in the coming weeks. The OSX [macOS] branch has some memory leaks that needs to be sorted out and both have some issues with the processes cpu usage calculation and other smaller issues that needs fixing.

If you want to help out, test for bugs/fix bugs or just try out the branches:

macOS / OSX

# Install and use Homebrew or MacPorts package managers for easy dependency installation
brew install coreutils make gcc@11 lowdown
git clone https://github.com/aristocratos/btop.git
cd btop
git checkout OSX
gmake

FreeBSD

sudo pkg install gmake gcc11 coreutils git lowdown
git clone https://github.com/aristocratos/btop.git
cd btop
git checkout freebsd
gmake

Note that GNU make (gmake) is recommended but not required for macOS/OSX but it is required on FreeBSD.

6 October 2021

macOS development have been started by @joske, big thanks :) See branch OSX for current progress.

18 September 2021

The Linux version of btop++ is complete. Released as version 1.0.0

I will be providing statically compiled binaries for a range of architectures in every release for those having problems compiling.

For compilation GCC 11 is required.

Please report any bugs to the Issues page.

The development plan right now:

  • 1.1.0 macOS [OSX] support
  • 1.2.0 FreeBSD support
  • 1.3.0 Support for GPU monitoring
  • 1.X.0 Other platforms and features...

Windows support is not in the plans as of now, but if anyone else wants to take it on, I will try to help.

5 May 2021

This project is gonna take some time until it has complete feature parity with bpytop, since all system information gathering will have to be written from scratch without any external libraries. And will need some help in the form of code contributions to get complete support for BSD and macOS/OSX.

Documents

CHANGELOG.md

CONTRIBUTING.md

CODE_OF_CONDUCT.md

Description

Resource monitor that shows usage and stats for processor, memory, disks, network and processes.

C++ version and continuation of bashtop and bpytop.

Features

Themes

Btop++ uses the same theme files as bpytop and bashtop (some color values missing in bashtop themes).

See themes folder for available themes.

Btop searches the following directories for system themes:

The first directory that exists and isn't empty is used as the system themes directory.

The user themes directory depends on which environment variables are set:

The make install command places the default themes in [$PREFIX or /usr/local]/share/btop/themes. User created themes should be placed in the user themes directory.

Use the --themes-dir command-line option to specify a custom themes directory. When specified, this directory takes priority over the default search paths.

Let me know if you want to contribute with new themes.

The new Process list pausing and Process following features introduce a few new theme attributes. These attributes still need to be added to all of the existing themes (except the default one).

Process list banner attributes:

Process following attributes:

Support and funding

You can sponsor this project through GitHub. See my sponsors page for options.

Or donate through PayPal or ko-fi.

Any support is greatly appreciated!

Prerequisites

For the best experience run within a terminal with support for:

Also necessary is a UTF8 locale and a font that includes:

Optional Dependencies (Needed for GPU monitoring)

GPU monitoring is supported on Linux and on macOS with Apple Silicon GPUs.

GPU monitoring also requires a btop binary built with GPU support (GPU_SUPPORT=true flag).

See GPU compatibility section for more about compiling with GPU support.

Notice (Text rendering issues)

Screenshots

Main UI showing details for a selected process

Screenshot 1

Main UI in TTY mode

Screenshot 2

Main UI with custom options

Screenshot 3

Main-menu

Screenshot 3

Options-menu

Screenshot 4

Help-menu

Screenshot 5

Installation

Binaries for Linux are statically compiled with musl and work on kernel releases 2.6.39 and newer

  1. Download btop-(VERSION)-(ARCH)-(PLATFORM).tbz from latest release and unpack to a new folder

    Notice! Use x86_64 for 64-bit x86 systems, i486 and i686 are 32-bit!

  2. Install (from created folder)

    • Run:
    # use "make install PREFIX=/target/dir" to set target, default: /usr/local
    # only use "sudo" when installing to a NON user owned directory
    sudo make install
    
  3. (Optional/Required for Intel GPU and CPU wattage) Set extended capabilities or suid bit to btop

    Enables signal sending to any process without starting with sudo and can prevent /proc read permissions problems on some systems.

    Is required for Intel GPU support and CPU wattage monitoring.

    • Run:
    # run after make install and use same PREFIX if any was used at install
    sudo make setcap
    
    • or
    # run after make install and use same PREFIX if any was used at install
    # set SU_USER and SU_GROUP to select user and group, default is root:root
    sudo make setuid
    

Binary release (from native os repo)

Binary release on Homebrew (macOS (x86_64 & ARM64) / Linux (x86_64))

Compilation Linux

Requires at least GCC 14 or Clang 19.

The Makefile also needs GNU coreutils and sed (should already be installed on any modern distribution).

GPU compatibility

Btop++ supports Nvidia and AMD GPUs and Intel IGPUs out of the box on Linux x86_64, provided you have the correct drivers and libraries.

Gpu support for Nvidia or AMD will not work when static linking glibc (or musl, etc.)!

For x86_64 Linux the flag GPU_SUPPORT is automatically set to true, to manually disable gpu support set the flag to false, like:

make GPU_SUPPORT=false (or cmake -DBTOP_GPU=false with CMake)

With Make

  1. Install dependencies (example for Ubuntu 24.04 Noble)

    sudo apt install coreutils sed git build-essential lowdown
    
  2. Clone repository

    git clone https://github.com/aristocratos/btop.git
    cd bto
    

btop (aristocratos/btop)

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35K ·GitHub
What is this?A terminal resource monitor that shows usage and stats for processor, memory, disks, network and processes. It is the C++ version and continuation of bashtop and bpytop.
Is it a desktop app or does it run in the terminal?It runs in the terminal — a fast, game-inspired TUI with full mouse support and keyboard process selection, so any decent terminal emulator works as the interface.
Does my terminal need anything special to display it properly?24-bit truecolor (256-color via the low-color flag), a UTF8 locale, and a font with Braille and Box Drawing glyphs. If graphs look wrong, it's usually the terminal's fallback font, not a btop bug.
Which operating systems does it run on?Linux (static musl binaries, kernel 2.6.39 and newer), macOS on both Intel and Apple Silicon, FreeBSD, NetBSD, OpenBSD, plus a Windows build (btop4win).
Does GPU monitoring work out of the box?Only on Linux and macOS with Apple Silicon, and the binary must be built with GPUSUPPORT=true — release binaries lack it. NVIDIA needs the official driver and nvidia-ml, AMD needs rocm-smi-lib, Intel needs SYSFS read access.
Why did the author rewrite bashtop in C++?btop is the C++ successor to bashtop (bash) and bpytop (Python). All system information gathering had to be written from scratch in C++ without external libraries, which is why reaching full feature parity with bpytop took time.
Can I use the mouse in it?Yes, fully: every button with a highlighted key is clickable, scrolling works in the process list and menu boxes, and there is a game-inspired menu system alongside keyboard control.
Is btop free?Yes — it is open source under the Apache-2.0 license and costs nothing. The author accepts support through GitHub Sponsors, PayPal or ko-fi.
What are similar projects?bpytop, nvtop, duf, lnav, bottom, tailcat, glances, lsoff
Size
10.2 MB
Stars
35K
Age
5y
Commits · 90 Days