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An open-source AI pair programmer that runs in your terminal, editing your actual git repository with automatic commits for every change.

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Preview of Aider

Overview

Aider brings AI pair programming to the terminal, working directly against your real repository: it maps the codebase, proposes multi-file edits and leaves every change as a clean git commit you can review or revert.

Because it is open source and model-agnostic — connecting to Claude, GPT, local models and more — it appeals to developers who want an agent inside their own workflow rather than a hosted IDE.

Pros / Cons

Pros

  • Works against your real git repository
  • Automatic, reviewable commits
  • Model-agnostic including local models
  • Open source and scriptable

Cons

  • Terminal-only, no graphical UI
  • Requires comfort with git and the command line
  • Quality depends on the model you connect

Who it's for

01

Large refactors across many files

02

AI workflow inside existing repos

03

Scripted automation of code changes

Bottom line

Aider is the power tool for developers who want AI edits as reviewable git commits inside their own terminal workflow.

Key Features

Terminal-native workflow
Automatic git commits
Multi-file editing
Works with local models

Tags

CodingOpen sourceCLI

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Frequently asked questions

What is Aider?

Aider is a Code Generation tool developed by Aider. The company was founded in 2023 and is headquartered in Open source. An open-source AI pair programmer that runs in your terminal, editing your actual git repository with automatic commits for every change.

Is Aider free?

Yes — Aider is free to use.

Is Aider open source?

No — Aider is proprietary software.

What are the best alternatives to Aider?

Notable Code Generation alternatives include GitHub Copilot, Cursor, Windsurf. Browse all 4 tools in our Code Generation category for a full overview.

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Basic Info

Pricing
Free
Rating
4.4 (3,000 reviews) Ratings explained
Platforms
CLI
Founded
2023
Headquarters
Open source
Last verified
2026-09-08