## Installation

Foundry is installed using **foundryup**, the official installer and version manager.

:::steps
### Install foundryup

```bash
$ curl -L https://getfoundry.sh/install | bash
```

### Restart your terminal

Or run `source ~/.bashrc` / `source ~/.zshrc`.

### Install Foundry

```bash
$ foundryup
```
:::

This installs the latest stable versions of `forge`, `cast`, `anvil`, and `chisel`.

:::tip
By default, if neither `FOUNDRY_DIR` nor `XDG_CONFIG_HOME` is set, Foundry is installed to `~/.foundry`. If `XDG_CONFIG_HOME` is set, it defaults to `$XDG_CONFIG_HOME/.foundry`. You can override both defaults by setting the `FOUNDRY_DIR` environment variable before running `foundryup`. For details on the directory layout and environment variables, see the [Config Reference Overview](/config/reference/overview#directory-layout).
:::

:::warning[Windows]
Foundryup requires [Git Bash](https://gitforwindows.org/) or [WSL](https://learn.microsoft.com/en-us/windows/wsl/install). PowerShell and Command Prompt are not supported.
:::

:::note
If installation fails, see [Troubleshooting](/help/troubleshooting) for common fixes.
:::

## Updating

Run `foundryup` anytime to update to the latest stable release:

```bash
$ foundryup
```

## Installing specific versions

```bash [Install the nightly build]
$ foundryup --install nightly
```

```bash [Install a specific version]
$ foundryup --install 1.0.0
```

```bash [Install a specific nightly build]
$ foundryup --install nightly-abc1234
```

```bash [Install from a branch]
$ foundryup --branch master
```

## Tempo support

Tempo support ships in the main Foundry release as of v1.7.0. Install the normal toolchain:

```bash
$ foundryup
```

The old `foundryup -n tempo` / `foundryup --network tempo` flow is deprecated and ignored.

See the [Tempo guide](/guides/tempo) for project setup and [MPP-backed RPC endpoints](/guides/mpp) for paid RPC configuration.

## Binary verification

Foundry binaries are attested using [GitHub artifact attestations](https://docs.github.com/en/actions/security-for-github-actions/using-artifact-attestations/using-artifact-attestations-to-establish-provenance-for-builds). When installing via `foundryup`, binary hashes are automatically verified against the GitHub attestation.

To manually verify an installed binary:

```bash
$ gh attestation verify --owner foundry-rs $(which forge)
```

Use `foundryup --force` to skip verification and force a fresh install.

## Alternative installation methods

:::note
Foundry no longer publishes npm packages for `forge`, `cast`, `anvil`, or `chisel`. Use `foundryup`, GitHub releases, Docker, or build from source instead.
:::

### Precompiled binaries

Download binaries directly from the [GitHub releases page](https://github.com/foundry-rs/foundry/releases). Extract and add them to your `PATH`.

### Building from source

Requires [Rust](https://rustup.rs/) (latest stable). On Windows, also requires [Visual Studio](https://visualstudio.microsoft.com/downloads/) with the "Desktop Development With C++" workload.

```bash [Update Rust]
$ rustup update stable
```

```bash [Install from GitHub]
$ cargo install --git https://github.com/foundry-rs/foundry --profile release --locked forge cast chisel anvil
```

Or build from a local clone:

```bash
$ git clone https://github.com/foundry-rs/foundry.git
$ cd foundry
$ cargo install --path ./crates/forge --profile release --locked
$ cargo install --path ./crates/cast --profile release --locked
$ cargo install --path ./crates/anvil --profile release --locked
$ cargo install --path ./crates/chisel --profile release --locked
```

You can also use foundryup to build from source:

```bash
$ foundryup --branch master
$ foundryup --path /path/to/foundry
```

### Docker

```bash
$ docker pull ghcr.io/foundry-rs/foundry:latest
```

Or build locally from the [repository](https://github.com/foundry-rs/foundry):

```bash
$ docker build -t foundry .
```

:::note
Some systems (including Apple Silicon) may have issues building the Docker image locally.
:::

### CI/CD

See the [CI integration guide](/config/ci) for GitHub Actions and other CI platforms.

## Uninstalling

Foundry stores all files in `~/.foundry`. To uninstall:

:::steps
### Back up keystores

The `.foundry` directory may contain keystores with private keys.

### Remove the directory

```bash
$ rm -rf ~/.foundry
```

### Remove PATH entry

Edit your shell config (`.bashrc`, `.zshrc`, etc.) and remove the Foundry PATH line.
:::