# Install the Chainsaw CLI | Chainsaw > Download Chainsaw CLI binaries (SHA-256 checksum published) for macOS, Linux, and Windows. The free, open-source install-path firewall for your terminal — no account required. Source: https://chain305.com/cli-download/ --- CLI # Install the Chainsaw CLI Free and open source, no account required. One static binary per platform, each with a published SHA-256 checksum. Pick your platform ## Choose your platform below We couldn't detect your OS. Every binary is listed below. [Download](#binaries) [See all platforms](#binaries) ## All binaries Verify your download against `chainsaw-checksums.txt` before running it. OS Architecture Filename Download macOS Apple Silicon (M-series) `chainsaw-darwin-arm64` [Download](https://chain305.com/downloads/chainsaw-darwin-arm64) macOS Intel (x86\_64) `chainsaw-darwin-amd64` [Download](https://chain305.com/downloads/chainsaw-darwin-amd64) Linux x86\_64 `chainsaw-linux-amd64` [Download](https://chain305.com/downloads/chainsaw-linux-amd64) Linux ARM64 (aarch64) `chainsaw-linux-arm64` [Download](https://chain305.com/downloads/chainsaw-linux-arm64) Windows x86\_64 `chainsaw-windows-amd64.exe` [Download](https://chain305.com/downloads/chainsaw-windows-amd64.exe) ### One-liner install ``` curl -fsSL https://chain305.com/downloads/chainsaw-$(uname -s | tr "A-Z" "a-z")-$(uname -m | sed "s/x86_64/amd64/;s/aarch64/arm64/") -o chainsaw chmod +x chainsaw && sudo mv chainsaw /usr/local/bin/ chainsaw version ``` ``` irm https://chain305.com/downloads/chainsaw-windows-amd64.exe -OutFile chainsaw.exe .\chainsaw.exe version ``` Next up: [Set up Chainsaw as a package proxy](https://docs.chain305.com/tutorials/01-set-up-chainsaw-as-package-proxy/) — the 5-minute getting-started guide. Verify checksums Download the checksum manifest and verify your binary before installing: ``` curl -fsSL https://chain305.com/downloads/chainsaw-checksums.txt -o chainsaw-checksums.txt shasum -a 256 -c chainsaw-checksums.txt --ignore-missing ``` Full manifest: [`/downloads/chainsaw-checksums.txt`](https://chain305.com/downloads/chainsaw-checksums.txt) (mirror: [`/downloads/checksums.txt`](https://chain305.com/downloads/checksums.txt)) Already installed? ## Log in and put it to work `chainsaw auth login` signs you in through the browser and keeps the token in your OS keyring. [Start the 5-minute setup](https://docs.chain305.com/tutorials/01-set-up-chainsaw-as-package-proxy/) --- ## Long form The full text behind this page, including detail the page itself leaves out. CLI ### Install the Chainsaw CLI The install-path firewall for your terminal — free and open source, no account required. One static binary for every major platform, SHA-256 checksum published for each, token stored in the OS keyring. Pick your platform #### Choose your platform below We couldn't detect your OS automatically. Every binary is listed underneath — grab the one that matches your machine. [Download](#binaries) [See all platforms](#binaries) All platforms - [macOS Apple Silicon (M-series)](https://chain305.com/downloads/chainsaw-darwin-arm64) - [macOS Intel (x86\_64)](https://chain305.com/downloads/chainsaw-darwin-amd64) - [Linux x86\_64](https://chain305.com/downloads/chainsaw-linux-amd64) - [Linux ARM64 (aarch64)](https://chain305.com/downloads/chainsaw-linux-arm64) - [Windows x86\_64](https://chain305.com/downloads/chainsaw-windows-amd64.exe) #### All binaries Every binary ships with a published SHA-256 checksum (`chainsaw-checksums.txt`) — verify your download before running it (`shasum -a 256 -c`). Sigstore-signed releases with on-launch signature verification land once the release-signer bot is provisioned. OS Architecture Filename Size Download macOS Apple Silicon (M-series) `chainsaw-darwin-arm64` — [Download](https://chain305.com/downloads/chainsaw-darwin-arm64) macOS Intel (x86\_64) `chainsaw-darwin-amd64` — [Download](https://chain305.com/downloads/chainsaw-darwin-amd64) Linux x86\_64 `chainsaw-linux-amd64` — [Download](https://chain305.com/downloads/chainsaw-linux-amd64) Linux ARM64 (aarch64) `chainsaw-linux-arm64` — [Download](https://chain305.com/downloads/chainsaw-linux-arm64) Windows x86\_64 `chainsaw-windows-amd64.exe` — [Download](https://chain305.com/downloads/chainsaw-windows-amd64.exe) ##### One-liner install ``` curl -fsSL https://chain305.com/downloads/chainsaw-$(uname -s | tr "A-Z" "a-z")-$(uname -m | sed "s/x86_64/amd64/;s/aarch64/arm64/") -o chainsaw chmod +x chainsaw && sudo mv chainsaw /usr/local/bin/ chainsaw version ``` ``` irm https://chain305.com/downloads/chainsaw-windows-amd64.exe -OutFile chainsaw.exe .\chainsaw.exe version ``` Next up: [Set up Chainsaw as a package proxy](https://docs.chain305.com/tutorials/01-set-up-chainsaw-as-package-proxy/) — the 5-minute getting-started guide. Verify checksums Download the checksum manifest and verify your binary before installing: ``` curl -fsSL https://chain305.com/downloads/chainsaw-checksums.txt -o chainsaw-checksums.txt shasum -a 256 -c chainsaw-checksums.txt --ignore-missing ``` Full manifest: [`/downloads/chainsaw-checksums.txt`](https://chain305.com/downloads/chainsaw-checksums.txt) (mirror: [`/downloads/checksums.txt`](https://chain305.com/downloads/checksums.txt)) #### Already installed? Log in and put it to work. `chainsaw auth login` opens the dashboard in your browser, runs Turnstile, and drops the token into your OS keyring. No copy-pasted API keys. [Start the 5-minute setup](https://docs.chain305.com/tutorials/01-set-up-chainsaw-as-package-proxy/)