Aider is an open-source, terminal-based AI pair programming tool that edits code in your local git repository and works with models such as Claude, OpenAI, and DeepSeek. It maps the codebase for context and commits changes with sensible messages.
✓ Best for
Terminal-comfortable developers who want git-native, model-flexible AI assistance in existing codebases
Capabilities
Terminal pair programming with multiple LLMsAutomatic git commits with descriptive messagesCodebase mapping for larger projectsSupport for 100+ languagesVoice-to-code and image/web context