AI

Aider

by AiderOpen SourceFree plan available✅ Last verified: September 2026
Coding

Quick Answer

Open source terminal AI pair programmer that edits your local git repo.

Open source AI pair programming tool that runs in the terminal and edits your local git repository directly. Works with a wide range of LLM providers (GPT, Claude, DeepSeek, local models) via API keys, making it a flexible, cost-controllable choice for developers.

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Best For

Terminal-based pair programmingDevelopers who want model flexibilityCost-conscious AI coding workflows

Why Choose Aider

  • ✓Completely free and open source
  • ✓Works with almost any LLM provider or local model
  • ✓Edits git repos directly with automatic commits
  • ✓Active open source community and rapid updates

Pricing

Open SourceFrom Free — pay only for LLM API usage

Free plan available — no credit card required for most tools.

Pros

  • +Completely free and open source
  • +Works with almost any LLM provider or local model
  • +Edits git repos directly with automatic commits
  • +Active open source community and rapid updates

Cons

  • −Requires your own API keys and billing setup
  • −Command-line interface has a learning curve
  • −No built-in GUI or visual diff review

Key Features

Terminal codingGit integrationMulti-model supportRepo mappingVoice input

Compatibility

Platforms

WindowsmacOS

API

Not available

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Frequently Asked Questions about Aider

What is Aider?

Open source terminal AI pair programmer that edits your local git repo.

Is Aider free?

Yes, Aider offers a free plan. It is completely free to use.

What platforms does Aider support?

Aider is available on Windows, macOS.

Who is Aider best for?

Aider is best for terminal-based pair programming, developers who want model flexibility, cost-conscious ai coding workflows.

Does Aider have an API?

Aider does not currently offer public API access.

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