aider.chat
AI pair programming directly in the terminal with LLM support
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Apache-2.0 v0.86.0 May 16, 2026
Since May 2023 1,553
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AI Summary
Aider is a command-line tool for AI-powered pair programming that assists developers in writing, refactoring, and debugging code. It integrates seamlessly into existing projects, utilizes various LLMs like Claude or GPT-4o, and offers automatic Git integration as well as codebase mapping. The tool supports over 100 programming languages and can be operated via voice input, IDE integration, or terminal.
✓ Pros
- + Supports numerous LLMs (Claude, GPT-4o, DeepSeek, local models) and over 100 programming languages
- + Automatic Git integration with meaningful commit messages and easy rollback
- + Intelligent codebase mapping for effective work in large projects
✗ Cons
- − Terminal-based, may take some getting used to for GUI-oriented developers
- − Requires API keys for commercial LLMs and thus incurs ongoing costs
Use Cases
- → Automatic refactoring and optimization of existing code in large projects
- → Rapid implementation of new features through voice commands or text instructions
- → Bug hunting and fixes with automatic lint and test integration
- → Creation of test cases and documentation for existing codebases
Who is it for?
Developers and software teams who want to increase their productivity through AI-assisted code generation and refactoring in their terminal workflow.
