Install SlackCLI on macOS, Linux and Windows

SlackCLI ships as a single self-contained binary. There is no runtime to install — you do not need Bun or Node.js to run it.

Homebrew (macOS and Linux)

brew tap shaharia-lab/tap
brew install slackcli

Upgrade with brew upgrade slackcli.

Pre-built binaries

Download the binary for your platform, make it executable, and put it on your PATH.

# Linux x86_64
curl -L https://github.com/shaharia-lab/slackcli/releases/latest/download/slackcli-linux -o slackcli

# Linux arm64
curl -L https://github.com/shaharia-lab/slackcli/releases/latest/download/slackcli-linux-arm64 -o slackcli

# macOS Intel
curl -L https://github.com/shaharia-lab/slackcli/releases/latest/download/slackcli-macos -o slackcli

# macOS Apple Silicon
curl -L https://github.com/shaharia-lab/slackcli/releases/latest/download/slackcli-macos-arm64 -o slackcli

chmod +x slackcli
mkdir -p ~/.local/bin && mv slackcli ~/.local/bin/

On Windows, download slackcli-windows.exe from the latest release and add it to your PATH.

Every release publishes a checksums.txt alongside the binaries if you want to verify a manual download.

From source

Requires Bun 1.0 or newer.

git clone https://github.com/shaharia-lab/slackcli.git
cd slackcli
bun install
bun run build          # produces ./dist/slackcli

See development setup for the full contributor toolchain.

Verifying the install

slackcli --version
slackcli --help

Updating

slackcli update check   # report the latest release without changing anything
slackcli update         # download and replace the running binary in place

slackcli update downloads the release asset for your platform, verifies its SHA-256 digest against the digest GitHub publishes for that asset, and only then replaces the binary. A missing or mismatched digest aborts the update rather than installing an unverified file.

Two cases where slackcli update deliberately does nothing:

• Installed via Homebrew. Use brew upgrade slackcli; the self-updater detects a Homebrew path and points you there so it does not fight the package manager.
• Running from source (bun run dev). There is no binary to replace — use git pull.

SlackCLI also checks for new releases in the background at most once every 24 hours and prints a one-line notice after your command’s output when a newer version exists. The result is cached in ~/.config/slackcli/update-check.json.

Uninstalling

brew uninstall slackcli          # Homebrew
rm ~/.local/bin/slackcli         # manual install

slackcli auth logout             # remove stored credentials first
rm -rf ~/.config/slackcli        # or wipe the config directory entirely