Aider
Open Sourceby Aider
★ 4.7 (231 reviews)
Aider is a free, open-source AI pair programmer that edits code in your local git repo straight from the terminal.
Try Aider free
The tool is free; you pay only for the model API you connect.
We may earn a commission from this link, at no extra cost to you. Disclosure.
Last reviewed
Best for
Terminal-first developers who want precise, git-aware AI edits with full cost control.
What is Aider?
Aider is an open-source command-line AI coding assistant. It works directly in your local git repository, makes targeted multi-file edits, and auto-commits each change with a sensible message. You bring your own model API key, so it stays cheap and private.
Key features
- ▹Terminal-native
- ▹Git-aware auto-commits
- ▹Multi-file edits
- ▹Repo map for context
- ▹Bring your own model
- ▹Voice coding
Pros
- +Free and open-source
- +Excellent git integration
- +Low token usage via repo maps
- +Works with any model
Cons
- −Terminal-only (no GUI)
- −Requires comfort with git
Aider pricing
Free tier: The tool is free; you pay only for the model API you connect.
Open Source
Free
- ▹Unlimited use
- ▹Your own API key
How to get started with Aider
- 1 Run `pip install aider-install` then `aider-install`
- 2 Set your model API key
- 3 Run `aider` inside a git repo
- 4 Describe the change in plain English
Try Aider free
The tool is free; you pay only for the model API you connect.
We may earn a commission from this link, at no extra cost to you. Disclosure.
Aider FAQ
Is Aider free to use?
Yes. Aider is open-source and free. Your only cost is the model API key you connect, and its repo-map approach keeps token usage low.
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