Enterprise DNA
Directories / Alternatives / OpenAI Codex

Open Source Alternatives

Open source alternatives to OpenAI Codex

Open source alternatives to OpenAI Codex, ranked by GitHub stars and freshness.

3 open-source alternatives in the index, ranked by GitHub stars and freshness.

A Agents Coding one click

Claude Code

Anthropic

Anthropic's terminal-native coding agent. Reads your repo, edits files, runs tests, ships PRs.

paid

Best for: Senior engineers who want a real terminal agent, not just autocomplete

A Agents Coding one click

Cursor

Anysphere

The AI-first code editor. Tab to autocomplete, Composer to multi-file refactor, Agents for the long-running stuff.

freemium

Best for: Teams who want IDE polish and agent power in one tool

A Agents Coding high

OpenHands

All Hands AI

Open-source autonomous coding agent platform. Spins up a sandboxed dev environment, ships PRs end to end.

open-source

Best for: Teams who want a real autonomous coding agent and can run their own infra