aider

AI pair programming tool for developers

Pricing: freemium — Some features require payment · Visit website

Aider is an AI pair programming tool that lets you collaborate with large language models in your terminal. It maps your codebase and supports over 100 languages, making it ideal for both new projects and existing codebases.

Pros

Supports multiple LLMs
Maps entire codebase
Over 100 supported programming languages

Cons

Limited to terminal use
May require setup for local models

FAQ

Does Aider support my language?

Yes, it supports over 100 popular programming languages.

Is Aider free?

It's freemium with some paid features.

Can I use local models?

Yes, but setup may be required.

Last updated: 2026-06-21