Aider
Free & Open SourceAI pair programming in your terminal. Edit code with natural language commands and get intelligent suggestions.
About Aider
Free, open-source AI pair programming tool that runs in your terminal. Edit code with natural language commands and get intelligent suggestions.
Key Features
- ✓AI-Powered Automation: Automates complex workflows using intelligent algorithms
- ✓User-Friendly Interface: Intuitive design that requires minimal learning curve
- ✓Integration Support: Connects with popular tools and platforms seamlessly
- ✓Real-Time Processing: Delivers instant results with low latency
- ✓Scalable Architecture: Grows with your needs from individual to enterprise use
Pricing
Pricing extracted from on-page table (as-of dates in heading may be stale).
Pros & Cons
✅ Pros
- ✅ Completely free and open source
- ✅ Perfect for terminal-first workflows
- ✅ Automatic git commits with every change
- ✅ Understands entire codebase
- ✅ Can edit multiple files simultaneously
⚠️ Cons
- ⚠️ Terminal-based, requires CLI comfort
- ⚠️ Requires API key (or local model)
- ⚠️ No GUI for visual developers
- ⚠️ Setup requires technical knowledge
Use Cases
Code Refactoring
Use AI to refactor code across multiple files in your git repository.
Feature Development
Build new features with AI pair programming in the terminal.
Bug Fixing
Get AI assistance to identify and fix bugs in your codebase.
Alternatives
Frequently Asked Questions
Is Aider free?
Yes, Aider is completely free and open source. You'll need to provide your own API key for an LLM provider like OpenAI or Anthropic, or you can run it with local models. There's no subscription fee.
How does Aider work with git?
Aider automatically creates git commits for each set of changes it makes. Each commit includes a descriptive message explaining what was changed, making it easy to review history, roll back changes, or understand the evolution of your code.
Can I use Aider without leaving my terminal?
Absolutely! Aider is designed to be used entirely from the command line. You can run it in any terminal, work with your preferred text editor, and never need to switch to a web browser or GUI application.
What's the difference between Aider and Mentat?
Both are terminal-based AI coding assistants. Aider has deeper git integration and automatic commits, while Mentat focuses on showing diffs and giving you more control over the review process. Both are excellent choices for terminal workflows.