Aider is a powerful tool that enables seamless pair programming with large language models (LLMs) to enhance project development and code management.
Aider lets you pair program with LLMs to start a new project or build on your existing codebase.
⭐ GitHub Stars 31K 📦 Installs 2.0M
📈 Tokens/week 15B
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Features
Cloud and local LLMs
Maps your codebase Aider makes a map of your entire codebase, which helps it work well in larger projects.
100+ code languages Aider works with most popular programming languages: python, javascript, rust, ruby, go, cpp, php, html, css, and dozens more.
Git integration Aider automatically commits changes with sensible commit messages. Use familiar git tools to easily diff, manage and undo AI changes.
In your IDE Use aider from within your favorite IDE or editor. Ask for changes by adding comments to your code and aider will get to work.
Images & web pages Add images and web pages to the chat to provide visual context, screenshots, reference docs, etc.
Voice-to-code Speak with aider about your code! Request new features, test cases or bug fixes using your voice and let aider implement the changes.
Linting & testing Automatically lint and test your code every time aider makes changes. Aider can fix problems detected by your linters and test suites.
Copy/paste to web chat Aider works best with LLM APIs, but it can also work an LLM via its web chat interface. Aider streamlines copy/pasting code back and forth with a browser.
Getting Started
python -m pip install aider-install
aider-install
# Change directory into your codebase
cd /to/your/project
# DeepSeek
aider --model deepseek --api-key deepseek=<key>
# Claude 3.7 Sonnet
aider --model sonnet --api-key anthropic=<key>
# o3-mini
aider --model o3-mini --api-key openai=<key>Want more details?
Installation Guide Usage Guide
Kind Words From Users
It's a cool workflow... Aider's ergonomics are perfect for me.
— qup
Aider is amazing, coupled with Sonnet 3.5 it's quite mind blowing.
I like aider :)
Best agent for actual dev work in existing codebases.
It's just amazing. It is freeing me to do things I felt were out my comfort zone before.
— Dougie
Oh no the secret is out! Yes, Aider is the best coding tool around. I highly, highly recommend it to anyone.