Install codex on Windows, macOS or Linux
Install codex with one command
Pick your system, reveal the command, copy it, paste it into your terminal and press Enter. This command was taken from the project's own documentation and checked against it.
Not available for Windows yet.
codex doesn't publish an install command for Windows anywhere we can verify, so there's nothing for us to show you. We won't invent one. It does document one for macOS and Linux — switch to that tab.
Pastes into PowerShell and installs codex on your Windows machine in one step — no manual setup, no build tools. It fetches the project's own install script and runs it, which is the standard way these tools ship — worth a read if you like to know what's running.
Not available for macOS yet.
codex doesn't publish an install command for macOS or Linux anywhere we can verify, so there's nothing for us to show you. We won't invent one. It does document one for Windows — switch to that tab.
Pastes into your terminal and installs codex on your macOS or Linux machine in one step — no manual setup, no build tools. It fetches the project's own install script and runs it, which is the standard way these tools ship — worth a read if you like to know what's running.
What exactly does this do?
On Windows, open PowerShell (press Win, type PowerShell, hit Enter) and paste the command. On macOS or Linux, open Terminal — on a Mac it's in Applications ▸ Utilities, or press Cmd+Space and type Terminal — and paste the command there.
Run codex --help to see the available commands, and
codex --version to confirm the install worked. If your shell complains about
permissions, that project usually documents a corrected command on its own site.
This asks PowerShell to download a small installer script from the project, then execute it in memory. Nothing is saved to disk. The script is the project's own, but it's worth reading it first — that's why there's a note above.
codex at a glance
- Installs with a single
command —
PowerShell one-liner (irm | iex). - Installs on Windows and macOS / Linux.
- Free and open source, with no paid tier and no account needed.
- Command checked against the project's README, not just a search snippet.
- 127k stars — an actively used project.
codex doesn't publish a feature list we can quote, so this is what we verified ourselves.
About codex
codex is an open-source developer tool.
| Category | Developer tool |
|---|---|
| Install method | PowerShell one-liner (irm | iex) |
| Windows | documented install command available |
| macOS / Linux | documented install command available |
| Price | Free and open source |
| Command verified | Yes — checked against the project README |
| Popularity | 127k stars on the project's public repository |
On mobile
codex is a command-line tool, so there is no phone app for it — a phone has no shell to run it in. You'll need a desktop, or a remote shell into a machine that has one.
codex is developed by its own authors. This page is an independent reference; we are not affiliated with or sponsored by the project. The command shown here was reproduced from the project's public documentation — always check the project's own documentation before running anything.