Last updated March 25, 2026

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Aider

Open Source

Open-source AI pair programming tool that runs in your terminal and edits code in your local git repo

Best for: Developers who want open-source terminal-based AI pair programming with local git integration

Target Audience

Open-source developers, power users

4.3/5

Overview

Aider is an open-source AI pair programming tool that runs in your terminal, connects to models like Claude and GPT-4, and directly edits files in your local git repository with automatic commits.

Key Features

Terminal-based editing
Git integration
Auto-commits
Multi-file editing
Model agnostic
Map entire repo
Voice coding
Linting

Integrations

Any terminalGitClaudeGPT-4Any LLM API

Pros

  • Free and open-source
  • Works with any AI model
  • Direct git integration
  • Active community

Cons

  • Requires API key costs
  • Terminal-only interface
  • Learning curve
  • Setup required

Quick Facts

Pricing
Free (open-source)
Starting Price
Free (bring your own API key)

Pricing Details

Free and open-source. You pay only for the AI model API calls you make (Claude, GPT-4, etc).

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