# Codex CLI: Free Open Source Alternative to Claude Code

Canonical: https://caniforkit.com/fork/codex-cli
Last updated: 2026-11-07

Codex CLI (Open Source, Open Source) replaces Claude Code. Terminal-based AI coding agent that inspects files, edits code, runs commands, and integrates into CI pipelines using OpenAI's Codex models.

## Tool Specifications
- **Tool Name**: Codex CLI
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://learn.chatgpt.com/docs/codex/cli
- **GitHub Repository**: https://github.com/openai/codex
- **GitHub Stars**: ★ 133.5k
- **Runs On**: Local
- **Maintenance Status**: nov 2026
- **Platforms**: desktop, cross-platform, one-click install
- **Data Storage**: All application data lives locally on your own machine.
- **Installation**: Clone https://github.com/openai/codex or deploy with Docker Compose
- **Setup Requirements**: Download the native package or installer for your operating system.
- **The Catch / Limitation**: Community-driven open source project without dedicated enterprise SLAs.

## Paid SaaS Applications Replaced (1)
Replacing these paid tools with Codex CLI saves up to $15/mo ($180/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [Claude Code](https://caniforkit.com/claude-code) | [ai assistants](https://caniforkit.com/category/ai-assistant) | $15/mo | [Compare Claude Code vs Codex CLI](https://caniforkit.com/vs/claude-code-vs-codex-cli) |

## Frequently Asked Questions

### Is Codex CLI free and open source?
Codex CLI is an open source tool licensed under Open Source that runs on local. Terminal-based AI coding agent that inspects files, edits code, runs commands, and integrates into CI pipelines using OpenAI's Codex models.

### What is the trade-off or limitation of using Codex CLI?
Community-driven open source project without dedicated enterprise SLAs.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)