Aider

Free tier

AI Coding Terminal

Open source AI pair programmer that works in your terminal with any model.

★★★★★4.6(980 ratings)

Price: Free (open source)

📖 1 min read

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What is Aider?

Aider is an open source AI coding assistant that runs in your terminal. Connect it to Claude or GPT-4, point it at your codebase, and describe changes in plain English — it edits the files directly and commits the changes.

Key Features

Direct file editing — makes actual changes to your code
Git integration — automatically commits every change
Multi-model — works with Claude, GPT-4, Gemini, and local models
Repo map — understands your entire codebase structure

Pricing

Free and open source. You only pay for the AI model API you use (Claude, OpenAI, etc).

Our Verdict

The best free AI coding tool for developers comfortable with the terminal. Bring-your-own-API-key means no monthly subscription. Best for: Developers who want full control and no vendor lock-in Not ideal for: Non-technical users or those who prefer GUI

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Aider

Free (open source)

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In this review

What is it?

Who is it for?

Key features

Pricing

Our verdict