Aider is an open-source AI pair programming tool that runs directly in your terminal, allowing developers to collaborate with LLMs as if they were coding alongside a senior engineer. It maps your entire codebase to provide deep context, making it effective for both small scripts and large, complex projects. Aider supports leading cloud models like Claude 3.7 Sonnet, DeepSeek R1, OpenAI’s o1/o3/GPT-4o, as well as local LLMs for privacy-conscious workflows. Its Git integration ensures every AI-driven change is committed with clear messages, giving developers full transparency and control. Beyond text prompts, Aider accepts images, web pages, and even voice commands to guide code changes. With growing adoption, community support, and active development, Aider is widely regarded as one of the most capable free AI coding assistants available today.
Features
- Run aider with the files you want to edit: aider <file1> <file2>
- Add new features or test cases
- Describe a bug
- Aider will edit your files to complete your request
- Aider automatically git commits changes with a sensible commit message
- Cloud and local LLM support, including Claude, DeepSeek, OpenAI o-series, GPT-4o, and more.
- Aider can edit multiple files at once for complex requests
- Codebase mapping for structured awareness of large and multi-file projects.
- Supports 100+ programming languages, from Python and JavaScript to Go, Rust, and C++.
- Seamless Git integration, with auto-committed AI changes and rollback control.
Project Samples
