flyctl

August 6, 2026 · View on GitHub

flyctl is a command-line interface for fly.io.

Note: Most installations of flyctl also alias flyctl to fly as a command name, and this will become the default name in the future. During the transition, note that where you see flyctl as a command, it can be replaced with fly.

Installation

Using a Package Manager

Homebrew (macOS, Linux, WSL)

brew install flyctl

To upgrade to the latest version:

brew upgrade flyctl

Install Script

Download flyctl and install it into a local bin directory.

macOS, Linux, WSL

Installing the latest version:

curl -L https://fly.io/install.sh | sh

Installing the latest pre-release version:

curl -L https://fly.io/install.sh | sh -s pre

Installing a specific version:

curl -L https://fly.io/install.sh | sh -s 0.0.200

Windows

Run the PowerShell install script:

iwr https://fly.io/install.ps1 -useb | iex

Downloading from GitHub

Download the appropriate version from the Releases page of the flyctl GitHub repository.

Getting Started

Sign into your Fly account:
```
fly auth login
```
List your apps:
```
fly apps list
```
View app status:
```
fly status -a {app-name}
```

App Settings

flyctl will attempt to use the app name from a fly.toml file in the current directory. For example, if the current directory contains this file:

$ cat fly.toml
app: banana

flyctl will operate against the banana app unless overridden by the -a flag or another app name setting in the command line.