
Aider
Aider is a free command-line tool that lets developers pair program with AI to write and edit code directly in their terminal.




What is Aider
Aider is a tool that lets you have conversations with AI about your code, right from your command line. You can ask it to add features, fix bugs, write tests, or improve your code structure. Unlike other AI tools, Aider edits your files directly and commits changes to Git for you.
It creates a map of your entire project, which helps the AI understand how everything connects. This makes it great for working on large, existing codebases. You can also use your regular code editor alongside Aider, switching between manual edits and AI help smoothly.
The tool is completely free and open source. It works with popular AI models through their APIs, so you only pay for the AI service you choose to use.
How to Use Aider
Getting started with Aider is straightforward. Here are the steps:
Install Aider using pip by running
pip install aider-chatin your terminal.Set up your AI model key (like OpenAI or Anthropic) as an environment variable on your computer.
Open your terminal and go to your project folder that has Git set up.
Start Aider by typing
aiderfollowed by the files you want to work on, or just typeaiderto let it discover all files.Chat naturally with the AI about what changes you want. Ask it to add features, fix problems, or explain code.
Use commands like
/addto include more files,/undoto reverse changes, or/runto test your code.You can use voice commands by typing
/voiceif you prefer speaking instead of typing.
Features of Aider
Edits code files directly in your terminal
Automatic Git commits with clear messages
Works with 100+ programming languages
Connects to any AI model (Claude, GPT-4, DeepSeek)
Maps your entire codebase for better understanding
Voice-to-code commands available
Automatic code testing and linting
Image and webpage input support
Open source and fully free
Terminal and browser interfaces
Aider Pricing
Free (Tool)
Free
- Open source command-line tool
- Unlimited code editing and commits
- Works with 100+ programming languages
- Automatic Git commits with messages
- Codebase mapping for context
- Voice command support
- Connect to any AI model
- IDE integration support
- Community support via Discord and GitHub
AI Model Costs
Custom
- Requires separate AI API subscription
- Pay only for AI model usage (tokens)
- Claude API: ~$3-15 per million tokens
- OpenAI GPT-4: ~$5-30 per million tokens
- DeepSeek: ~$0.14-0.28 per million tokens
- Option to use free local AI models
- No markup from Aider
- Direct billing through AI provider
Aider Use Cases
Who Can Benefit from Aider
Aider Repository
View on Github| Stars | 37,992 |
| Forks | 3,584 |
| Repository Age | 2 years |
| Last Commit | 1 month ago |
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