Aider Download: AI Pair Programming in Your Terminal
Aider 0.86.2 · for Windows, macOS and Linux
Developer: Aider-AI (opens in a new tab)
- Windows
- macOS
- Linux
The download link points to the program’s official source; the file is not hosted on this site. Link address: github.com
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Aider is a free, open-source AI pair programming tool that runs in your terminal, maps your codebase and edits files in your git repository, committing each change. The latest version is 0.86.2, released on February 12, 2026; it installs with Python on Windows, macOS and Linux and is Apache 2.0 licensed.
Aider turns your terminal into a pair programming session with a language model. You ask for a change in plain language, aider edits the files and commits the result to git, so every step is easy to review or undo.
What does aider do?
- Edits real files: Works inside your existing project or starts a new one.
- Git integration: Commits each change with a sensible message, so you can diff or undo it.
- Codebase map: Builds a map of your whole repository, which helps in larger projects.
- Many languages: Works with 100+ programming languages, including Python, JavaScript, Rust, Go and C++.
- Lint and test: Can lint and test after each change and fix the problems it finds.
- Flexible input: Accepts images and web pages as context, and even voice requests.
- Any model: Works with cloud models from Anthropic, OpenAI, DeepSeek and others, and with local models.
Who is it for?
It suits developers who like the command line and want an AI assistant that respects their git workflow.
How to install
python -m pip install aider-install
aider-install
Then go to your project and start aider with a model and API key, for example:
cd /to/your/project
aider --model sonnet --api-key anthropic=<key>
Requirements
- Software: Python and git.
- Models: Any computer that runs a terminal is enough with a cloud model. Local models need hardware suited to the model you choose.
Aider is free and open source under the Apache 2.0 license. You pay only for the cloud model you use, if any.
Pros
- Edits files and commits each change to git
- Maps the whole codebase for better context
- Works with cloud and local models
Cons
- Terminal only, no graphical interface
- Releases have slowed in 2026
Frequently Asked Questions
Does aider work with local models?
Yes. Aider can connect to almost any language model, including local ones, as well as cloud models such as Claude, DeepSeek and GPT models.
Can I undo changes made by aider?
Yes. Aider commits each change to git with a descriptive message, so you can review it with a diff or undo it with normal git commands.
AiderOpen source
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