Aider

Aider lets you pair program with LLMs to start a new project or build on your existing codebase.
Features
Cloud and local LLMs
Aider works best with Claude 3.7 Sonnet, DeepSeek R1 & Chat V3, OpenAI o1, o3-mini & GPT-4o, but can connect to almost any LLM, including local models.
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.
Use 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
Work with any LLM via its web chat interface. Aider streamlines copy/pasting code context and edits back and forth with a browser.
Getting Started
See the installation instructions and usage documentation for more details.
More Information
Documentation
- Installation Guide
- Usage Guide
- Tutorial Videos
- Connecting to LLMs
- Configuration Options
- Troubleshooting
- FAQ
Community & Resources
- LLM Leaderboards
- GitHub Repository
- Discord Community
- Release notes
- Blog
Kind Words From Users
- *"My life has changed... Aider... It's going to rock your world."* — Eric S. Raymond on X
- *"The best free open source AI coding assistant."* — IndyDevDan on YouTube
- *"The best AI coding assistant so far."* — Matthew Berman on YouTube
- *"Aider ... has easily quadrupled my coding productivity."* — SOLAR_FIELDS on Hacker News
- *"It's a cool workflow... Aider's ergonomics are perfect for me."* — qup on Hacker News
- *"It's really like having your senior developer live right in your Git repo - truly amazing!"* — rappster on GitHub
- *"What an amazing tool. It's incredible."* — valyagolev on GitHub
- *"Aider is such an astounding thing!"* — cgrothaus on GitHub
- *"It was WAY faster than I would be getting off the ground and making the first few working versions."* — Daniel Feldman on X
- *"THANK YOU for Aider! It really feels like a glimpse into the future of coding."* — derwiki on Hacker News
- *"It's just amazing. It is freeing me to do things I felt were out my comfort zone before."* — Dougie on Discord
- *"This project is stellar."* — funkytaco on GitHub
- *"Amazing project, definitely the best AI coding assistant I've used."* — joshuavial on GitHub
- *"I absolutely love using Aider ... It makes software development feel so much lighter as an experience."* — principalideal0 on Discord