Aider is a command line tool that lets you pair program with LLMs, to edit code stored in your local git repository. Aider will directly edit the code in your local source files, and git commit the changes with sensible commit messages. You can start a new project or work with an existing git repo. Aider is unique in that it lets you ask for changes to pre-existing, larger codebases. Aider works well with GPT-4o, Claude 3 Opus, GPT-3.5 and supports connecting to almost any LLM.
See the installation instructions for more details, but you can get started quickly like this:
$ pip install aider-chat
# To work with GPT-4o
$ export OPENAI_API_KEY=your-key-goes-here
$ aider
# To work with Claude 3 Opus:
$ export ANTHROPIC_API_KEY=your-key-goes-here
$ aider --opus
- Chat with aider about your code by running
aider <file1> <file2> ...from the command line with set of source files to discuss and edit together. Aider lets the LLM see and edit the content of those files. - Aider can write and edit code in most every popular languages: python, javascript, typescript, php, html, css, and more...
- Aider works well with GPT-4o, Claude 3 Opus, GPT-3.5 and supports connecting to almost any LLM.
- Request new features, changes, improvements, or bug fixes to your code. Ask for new test cases, updated documentation or code refactors.
- Aider will apply the edits suggested by the LLM directly to your source files.
- Aider will automatically commit each changeset to your local git repo with a descriptive commit message. These frequent, automatic commits provide a safety net. It's easy to undo changes or use standard git workflows to manage longer sequences of changes.
- You can use aider with multiple source files at once, so aider can make coordinated code changes across all of them in a single changeset/commit.
- Aider gives the LLM a map of your entire git repo, which helps it understand and modify large codebases.
- You can also edit files by hand using your editor while chatting with aider. Aider will notice these out-of-band edits and keep up to date with the latest versions of your files. This lets you bounce back and forth between the aider chat and your editor, to collaboratively code with an LLM.
- You can add images files to your chat if you are working with a vision capable OpenAI model (GPT-4o, GPT-4 Turbo, etc).
- You can add URLs to the chat and aider will scrape their content and share it with the LLM.
- The best AI coding assistant so far. -- Matthew Berman
- Hands down, this is the best AI coding assistant tool so far. -- IndyDevDan
- Aider ... has easily quadrupled my coding productivity. -- SOLAR_FIELDS
- It's a cool workflow... Aider's ergonomics are perfect for me. -- qup
- It's really like having your senior developer live right in your Git repo - truly amazing! -- rappster
- What an amazing tool. It's incredible. -- valyagolev
- Aider is such an astounding thing! -- cgrothaus
- It was WAY faster than I would be getting off the ground and making the first few working versions. -- Daniel Feldman
- THANK YOU for Aider! It really feels like a glimpse into the future of coding. -- derwiki
- It's just amazing. It is freeing me to do things I felt were out my comfort zone before. -- Dougie
- This project is stellar. -- funkytaco
- Amazing project, definitely the best AI coding assistant I've used. -- joshuavial
- I absolutely love using Aider ... It makes software development feel so much lighter as an experience. -- principalideal0
- I have been recovering from multiple shoulder surgeries ... and have used aider extensively. It has allowed me to continue productivity. -- codeninja
- I am an aider addict. I'm getting so much more work done, but in less time. -- dandandan
- After wasting $100 on tokens trying to find something better, I'm back to Aider. It blows everything else out of the water hands down, there's no competition whatsoever. -- SystemSculpt
- Best agent for actual dev work in existing codebases. -- Nick Dobos