Is bottom free to use?

bottom is open source under the MIT licence. There is no licence fee and no seat count — you can self-host it or, where the project offers one, pay a vendor for a managed version instead.

Yet another cross-platform graphical process/system monitor.

What is bottom written in?

bottom is primarily written in Rust. Its source is publicly available at https://github.com/ClementTsang/bottom, and it has 14,147 GitHub stars.

bottom: Open Source Monitoring & Observability

bottom (btm)

A customizable cross-platform graphical process/system monitor for the terminal.
Supports Linux, macOS, and Windows. Inspired by gtop, gotop, and htop.

_{Demo using the Gruvbox theme (--theme gruvbox), along with IBM Plex Mono and Kitty}

Features
Support
- Official
- Unofficial
Installation
- Cargo
- Alpine
- Arch Linux
- Debian / Ubuntu
- Exherbo Linux
- Fedora / CentOS / AlmaLinux / Rocky Linux
  - COPR
  - Terra
  - RPM
- Gentoo
- Nix
- openSUSE
- Snap
- Solus
- Void
- Homebrew
- MacPorts
- Chocolatey
- Scoop
- winget
- Windows installer (MSI)
- Conda
- gah
- ghr
- mise
- Pre-built binaries
  - Auto-completion
Usage
Configuration
Troubleshooting
Documentation
Contribution
- Contributors
Thanks

Features

As (yet another) process/system visualization and management application, bottom supports the typical features:

Graphical visualization widgets for:
- CPU usage over time, at an average and per-core level
- RAM and swap usage over time
- Network I/O usage over time
- Temperature over time
- Disk I/O usage over time
with support for zooming in/out the current time interval displayed.
Widgets for displaying info about:
A process widget for displaying, sorting, and searching info about processes, as well as support for:
- Kill signals
- Tree mode
Cross-platform support for Linux, macOS, and Windows, with more planned in the future.
Customizable behaviour that can be controlled with command-line options or a config file, such as:
- Custom and built-in colour themes
- Customizing widget behaviour
- Changing the layout of widgets
- Filtering out entries in some widgets
And more:
- An htop-inspired basic mode
- Expansion to focus on just one widget

You can find more details in the documentation.

Support

Official

bottom officially supports the following operating systems and corresponding architectures:

macOS (x86_64, aarch64)
Linux (x86_64, i686, aarch64)
Windows (x86_64, i686)

These platforms are tested to work for the most part and issues on these platforms will be fixed if possible. Furthermore, binaries are built and tested using the most recent version of stable Rust at the time.

For more details on supported platforms and known problems, check out the documentation.

Unofficial

bottom may work on a number of platforms that aren't officially supported. Note that unsupported platforms:

Might not be tested in CI to build or pass tests (see here for checked platforms).
Might not be properly tested by maintainers prior to a stable release.
May only receive limited support, such as missing features or bugs that may not be fixed.

Note that some unsupported platforms may eventually be officially supported (e.g., FreeBSD).

A non-comprehensive list of some currently unofficially-supported platforms that may compile/work include:

FreeBSD (x86_64)
Linux (armv6, armv7, powerpc64le, riscv64gc, loongarch64)
Android (arm64)
Windows (arm64)
NetBSD (x86_64)

For more details on unsupported platforms and known problems, check out the documentation.

Installation

Cargo

Installation via cargo can be done by installing the bottom crate:

# You might need to update the stable version of Rust first.
# Other versions might work, but this is not guaranteed.
rustup update stable

# Install the binary from crates.io.
cargo install bottom --locked

# If you use another channel by default, you can specify
# the what channel to use like so:
cargo +stable install bottom --locked

# --locked may be omitted if you wish to not use the
# locked crate versions in Cargo.lock. However, be
# aware that this may cause problems with dependencies.
cargo install bottom

Alternatively, you can use cargo install using the repo as the source.

# You might need to update the stable version of Rust first.
# Other versions might work, but this is not guaranteed.
rustup update stable

# Option 1 - Download an archive from releases and install
curl -LO https://github.com/ClementTsang/bottom/archive/0.14.9.tar.gz
tar -xzvf 0.14.9.tar.gz
cargo install --path . --locked

# Option 2 - Manually clone the repo and install
git clone https://github.com/ClementTsang/bottom
cd bottom
cargo install --path . --locked

# Option 3 - Install using cargo with the repo as the source
cargo install --git https://github.com/ClementTsang/bottom --locked

# You can also pass in the target-cpu=native flag to try to
# use better CPU-specific optimizations. For example:
RUSTFLAGS="-C target-cpu=native" cargo install --path . --locked

Alpine

bottom is available as a package for Alpine Linux via apk:

apk add bottom

Packages for documentation (bottom-doc) and completions for Bash (bottom-bash-completion), Fish (bottom-fish-completion), and Zsh (bottom-zsh-completion) are also available.

Arch Linux

bottom is available as an official package that can be installed with pacman:

sudo pacman -S bottom

If you want the latest changes that are not yet stable, you can also install bottom-git from the AUR:

# Using paru
paru -S bottom-git

# Using yay
yay -S bottom-git

Debian / Ubuntu

A .deb file is provided on each stable release and nightly builds for x86, aarch64, and armv7. Some examples of installing it this way:

# x86-64
curl -LO https://github.com/ClementTsang/bottom/releases/download/0.14.9/bottom_0.14.9-1_amd64.deb
sudo dpkg -i bottom_0.14.9-1_amd64.deb

# ARM64
curl -LO https://github.com/ClementTsang/bottom/releases/download/0.14.9/bottom_0.14.9-1_arm64.deb
sudo dpkg -i bottom_0.14.9-1_arm64.deb

# ARM
curl -LO https://github.com/ClementTsang/bottom/releases/download/0.14.9/bottom_0.14.9-1_armhf.deb
sudo dpkg -i bottom_0.14.9-1_armhf.deb

# musl-based
curl -LO https://github.com/ClementTsang/bottom/releases/download/0.14.9/bottom-musl_0.14.9-1_amd64.deb
sudo dpkg -i bottom-musl_0.14.9-1_amd64.deb

Exherbo Linux

bottom is available as a rust package that can be installed with cave:

cave resolve -x repository/rust
cave resolve -x bottom

Fedora / CentOS / AlmaLinux / Rocky Linux

COPR

[!WARNING]

atim/bottom seems to be unmaintained and may be outdated (relevant issue)

bottom is available on COPR:

sudo dnf copr enable atim/bottom -y
sudo dnf install bottom

Terra

bottom is also available via Terra:

sudo dnf install --repofrompath 'terra,https://repos.fyralabs.com/terra$releasever' --setopt='terra.gpgkey=https://repos.fyralabs.com/terra$releasever/key.asc' terra-release
sudo dnf install bottom

RPM

.rpm files are also generated for x86 in the releases page. For example:

curl -LO https://github.com/ClementTsang/bottom/releases/download/0.14.9/bottom-0.14.9-1.x86_64.rpm
sudo dnf install ./bottom-0.14.9-1.x86_64.rpm

Gentoo

Available in the official Gentoo repo:

sudo emerge --ask sys-process/bottom

Nix

Available in Nixpkgs as bottom:

nix profile install nixpkgs#bottom

bottom can also be installed and configured through the home-manager module:

{
  programs.bottom.enable = true;
}

openSUSE

Available in openSUSE Tumbleweed:

zypper in bottom

Snap

bottom is available as a snap:

sudo snap install bottom

# To allow the program to run as intended
sudo snap connect bottom:mount-observe
sudo snap connect bottom:hardware-observe
sudo snap connect bottom:system-observe
sudo snap connect bottom:process-control

Solus

Available in the Solus repos:

sudo eopkg it bottom

Void

Available in the void-packages repo:

sudo xbps-install bottom

Homebrew

The formula is available here:

brew install bottom

MacPorts

Available here:

sudo port selfupdate
sudo port install bottom

Chocolatey

Chocolatey packages are located here:

choco install bottom

Scoop

Available in the Main bucket:

scoop install bottom

winget

The winget package can be found here:

winget install bottom

# If you need a more specific app id:
winget install Clement.bottom

You can uninstall via Control Panel, Options, or winget --uninstall bottom.

Windows installer (MSI)

You can manually install bottom as a Windows program by downloading and using the .msi file from the latest release.

Conda

You can install bottom using conda with this conda-smithy repository:

# Add the channel
conda config --add channels conda-forge
conda config --set channel_priority strict

# Install
conda install bottom

gah

bottom can also be installed on Linux or macOS using gah:

gah install bottom

ghr

bottom can be installed using ghr like so:

ghr install clementtsang/bottom

mise

bottom is available via mise:

mise use -g bottom@latest

Pre-built binaries

You can also use the pre-built release binaries:

To use, download and extract the binary that matches your system. You can then run by doing:

./btm

or by installing to your system following the procedures for installing binaries to your system.

Auto-completion

The release binaries in the releases page are packaged with shell auto-completion files for Bash, Zsh, fish, Powershell, Elvish, Fig, and Nushell. To install them:

For Bash, move btm.bash to $XDG_CONFIG_HOME/bash_completion or /etc/bash_completion.d/.
For Zsh, move _btm to one of your $fpath directories.
For fish, move btm.fish to $HOME/.config/fish/completions/.
For PowerShell, add _btm.ps1 to your PowerShell profile.
For Elvish, the completion file is btm.elv.
For Fig, the completion file is btm.ts.
For Nushell, use btm.nu.

The individual auto-completion files are also included in the stable/nightly releases as completion.tar.gz if needed.

Usage

You can run bottom using btm.

For help on flags, use btm -h for a quick overview or btm --help for more details.
For info on key and mouse bindings, press ? inside bottom or refer to the documentation page.

You can find more information on usage in the documentation.

Configuration

bottom accepts a number of command-line arguments to change the behaviour of the application as desired. Additionally, bottom will automatically generate a configuration file on the first launch, which can be changed.

More details on configuration can be found in the documentation.

Troubleshooting

If some things aren't working, give the troubleshooting page a look. If things still aren't working, then consider asking a question or filing a bug report if you think it's a bug.

Documentation

The main documentation page can be found at , using Cloudflare Pages. If needed, a mirror hosted using Github Pages is also available at .

Contribution

Whether it's reporting bugs, suggesting features, maintaining packages, or submitting a PR, contribution is always welcome! Please read CONTRIBUTING.md for details on how to contribute to bottom.

Contributors

Thanks to all contributors:

_{Marcin Wojnarowski} 💻 📦	_{Mahmoud Al-Qudsi} 💻	_Andy 💻	_{Kim Brose} 💻	_{Sven-Hendrik Haase} 📖	_{Artem Polishchuk} 📦 📖	_{Trung Lê} 📦 🚇
_dm9pZCAq 📦 📖	_{Lukas Rysavy} 💻	_{Erlend Hamberg} 💻	_{Frederick Zhang} 💻	_pvanheus 💻	_{Brian Di Palma} 📖	_{Lasha Kanteladze} 📖
_{Herby Gillot} 📖	_{Greg Brown} 💻	_{TotalCaesar659} 📖	_{George Rawlinson} 📖 📦	_adiabatic 📖	_{Randy Barlow} 💻	_{Patrick Jackson} 🤔 📖
_{Mateusz Mikuła} 💻	_{Guillaume Gomez} 💻	_shura 💻	_{Wesley Moore} 💻	_xgdgsc 📖	_ViridiCanis 💻	_{Justin Martin} 💻 📖
_Diana 💻	_{Hervy Qurrotul Ainur Rozi} 📖	_{Mike Rivnak} 📖	_lroobrou 💻	_{database64128} 💻	_{Chon Sou} 💻	_DrSheppard 📖
_{Rareș Constantin} 💻	_felipesuri 📖	_spital 💻	_{Michael Bikovitsky} 💻	_{Dmitry Valter} 💻	_{Grace Stok} 💻	_{Yuxuan Shui} 💻
_{Wenqing Zong} 💻	_{Gabriele Belluardo} 💻	_{Zeb Piasecki} 💻	_wzy 💻 📖	_john-s-lin 📖	_{Lee Wonjoon} 💻 📖	_{David Legrand} 📖
_{Michal Bryxí} 📖	_{Raphael Erik Hviding} 💻	_CosmicHorror 💻	_{Ben Woods} 📖	_{Stephen Huan} 💻	_{Jason Gwartz} 📖	_llc0930 💻
_{Ada Ahmed} 💻	_Wateir 📖	_{Andrey Alekseenko} 💻	_{Fotis Gimian} 💻 📖	_{Fernando Rodrigues} 📖	_{Matthew Toohey} 💻	_{Julius Enriquez} 📖
_{Ben Brown} 💻	_{Yuri Astrakhan} 💻 📖	_{Kenichi Kamiya} 💻	_yahlia 💻	_{Bucket-Bucket-Bucket} 💻	_{Marek Sierociński} 📖	_{Tommaso Montanari} 🎨 🤔
_{Jean-Yves LENHOF} 📖	_{Adarsh Das} 💻 📖	_{rezky_nightky} 📖	_gitgoggles 💻	_Tom 🚧	_G 📖	_{Filipe Paniguel} 📖
_{Qiying Wang} 💻	_dastarruer 💻	_ChrisJr404 💻	_{Gergő Gutyina} 💻	_{Puneet Dixit} 💻	_{Umberto Puddu} 💻	_Anis 💻
_fazzi 💻	_{Peder Bergan} 💻

Thanks

This project is very much inspired by gotop, gtop, and htop.
This application was written with many, many libraries, as well as many services and programs, all built on top of the work of many talented people. bottom would not exist without all of this.
And of course, thank you again to all contributors and package maintainers!
I also really appreciate anyone who has used bottom, and those who go out of their way to report bugs or suggest ways to improve things. I hope it's been a useful tool for others.
To those who support my work financially via donations, thank you so much.
Thanks to JetBrains for providing access to tools that I use to develop bottom as part of their open source support program.

Also thanks to SignPath.io for providing a free code signing service, and to the SignPath Foundation for the certificate.