Aider

What it does

Aider works in the terminal against your actual repository, editing files and committing with sensible messages. Keyboard-first developers who distrust IDE magic tend to prefer its directness.

It is open source and free — you supply the model API key. Works with all frontier models and local ones via Ollama.

Standout features

• Open source and free
• Automatic git commits per change
• Works with any model, local or cloud
• Repo-map for large codebases

Best for