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Aider

Open-source AI pair programmer for terminal-based code editing

4.4(1,156 reviews)
open-sourceFree and open-source. BYOK for LLM API costsView full pricing →

Visit Aider

https://aider.chat

About Aider

Open-source AI pair programming tool that works in your terminal to edit code in your local git repository. Aider lets you pair program with LLMs to start new projects, add features, fix bugs, and refactor code. It works with GPT-4o, Claude, DeepSeek, and many other models, managing git commits automatically.

Key Features

Multi-file code editing
Automatic git commits
Support for 20+ LLM providers
Repository map for context
Voice coding support
Linting and testing integration

Aider Pros & Cons

Pros

  • +Best open-source AI coding tool available
  • +Automatic git commit messages save time
  • +Works with nearly any LLM provider
  • +Repo map gives excellent context management

⚠️ Cons

  • Terminal-only — no visual IDE integration
  • Can make unintended edits in large files
  • Requires git — doesn't work without version control
  • Steep learning curve for non-terminal users

Who Is Aider Best For?

👤Developers comfortable with terminal workflows
👤Open-source contributors wanting AI assistance
👤Teams wanting vendor-neutral AI coding tools

Tags

open sourcepair programmingterminalgitcode editingmulti-llm
🏷️

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