Aider
TrendingOpen-source AI pair programming in your terminal
👥 500K+ users💰 Open source, community-funded
✓ Last verified: April 2026
Aider is a free, open-source AI pair programming tool that runs in your terminal and integrates deeply with Git. It lets you use natural language to generate, edit, and refactor code across 100+ languages, automatically committing changes with sensible messages. You bring your own LLM API keys and only pay for usage.
Our Ratings
6
Ease of Use
8
Output Quality
10
Value
4
Support
9
Versatility
Key Features
- ✓Natural language code editing across 100+ programming languages
- ✓Automatic Git commits with meaningful commit messages
- ✓Architect mode for separating planning from code editing
- ✓Voice command support for hands-free coding
- ✓Works with any LLM including local models via Ollama
Best For
- 👍 Developers who prefer terminal-based workflows
- 👍 Cost-conscious developers who want to use their own API keys
- 👍 Open-source contributors wanting a flexible AI coding tool
Limitations
- ⚠️ Requires your own LLM API keys and associated costs
- ⚠️ Terminal-only interface has a steeper learning curve than IDE plugins
- ⚠️ Quality depends heavily on which LLM provider you choose
Integrations
GitOpenAI APIAnthropic APIOllamaAny OpenAI-compatible API
Quick Facts
DifficultyAdvanced
Team sizesolo
API accessNo
Mobile appNo
Data privacyhigh