Aider
by Aider · aider.chat ↗
Open-source command-line tool for AI pair programming that edits code in your local git repository.
ai-coding cli pair-programming open-source
- Category
- Coding & Developer Tools
- Business model
- Open (open weights/source)
- Availability
- Global
- Launched
- 2023
- Record updated
- 2026-07-30
- License
- Apache-2.0
- Founded
- 2023
- Canonical URL
- https://globalaiproductindex.com/products/aider/
Overview
Aider is an open-source command-line tool for AI pair programming that edits code directly in a local git repository. It works with many LLM providers, maps larger codebases to give the model context, and commits each change with a sensible git message. Aider itself is free under the Apache-2.0 license; users pay only for the API usage of whichever model they connect.
Key features
- Terminal-based AI pair programming in your local repo
- Automatic git commits with descriptive messages for each change
- Repository mapping so the model understands larger codebases
- Works with many LLM providers, including local models
Use cases
- Making multi-file code changes from natural-language requests
- Refactoring or extending an existing codebase from the terminal
- Pair programming with local or hosted models without leaving the CLI
Pricing
Aider is free and open source (Apache-2.0); the only cost is API usage for the LLM you connect, or nothing when using a local model.
Frequently asked questions
Is Aider free?
Yes. Aider is open source under Apache-2.0; you only pay for the API usage of the model you choose.
Which models does Aider work with?
Aider connects to many LLM providers and also works with locally hosted models.
Does Aider change my code directly?
Yes. Aider edits files in your local git repository and commits each change with a descriptive message.
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Sources
This record was last reviewed on 2026-07-30.
Machine-readable record: /api/products/aider.json · Spot an error? Suggest a correction