Aider

AI pair programming in your terminal

Free tier Open Source Active
Visit Website Documentation GitHub (25.0k)
Category
AI Coding Agents
Platforms
cli
Pricing
$0 — $0
Open Source
Yes
LLMs Used
Claude 3.5 Sonnet, GPT-4o, DeepSeek, Ollama (local)
IDE Support
Terminal
Quick links: Website Docs GitHub Pricing

# What is Aider?

Aider is the leading open-source AI coding agent. It works in your terminal, can edit multiple files, understands git, and automatically creates commits with sensible messages. Supports Claude, GPT-4, and local models.

Who is it for? Developers and teams who want to delegate multi-step coding tasks to an autonomous agent.

Key Features

agentopen-sourceterminalgitmulti-file

Available on

Terminal cli

* Our Verdict

4.5 /5

The best open-source AI coding agent. Excellent git integration and multi-file editing make it a serious alternative to commercial tools.

+- Pros & Cons

Pros

  • + Fully open source
  • + Excellent git integration
  • + Supports any LLM
  • + Active development
  • + Strong community
  • + Free

Cons

  • - CLI only (no GUI)
  • - Requires own API keys
  • - Learning curve for beginners
  • - No built-in testing integration

$ Pricing

Free
$0
  • Full features
  • Any LLM
  • Git integration
  • Multi-file editing

</> Supported Languages & IDEs

Languages

All major languages

IDEs & Platforms

Terminal

<> Compare Aider

Aider vs Claude Code Aider vs Cline

= Alternatives to Aider

Claude Code
Agentic coding in your terminal
4.7/5
Cline
Autonomous coding agent in VS Code
Free OSS 4.5/5
Roo Code
Autonomous AI coding agent for VS Code
Free OSS 4.4/5
PR-Agent
AI-powered pull request analysis and review
Free OSS 4.3/5
OpenHands (OpenDevin)
Open-source AI software agent
Free OSS 4.1/5
Replit Agent
Build apps with AI in the cloud
Free 4.1/5

i About Aider (Paul Gauthier)

Company Aider (Paul Gauthier)
Founded 2023
Repository github.com/Aider-AI/aider — 25.0k stars
Status Active
Data updated 2025-03-14