Aider - Code Smarter with AI Assistance

AI pair programming in your terminal

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Updated Jul 2026 · Added Jul 2026

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What is Aider?

Aider is an AI pair programming tool that runs in your terminal, letting you collaborate with LLMs like Claude, OpenAI, and DeepSeek to build new projects or enhance existing codebases. It maps your entire codebase for context-aware assistance, supports 100+ programming languages, and integrates with Git for automatic commits and change management. Built for developers who want AI-powered coding help while maintaining control through familiar terminal workflows and git tools.

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Key Features of Aider

Cloud and local LLM support (Claude, DeepSeek, OpenAI)
Codebase mapping for larger projects
100+ programming language support
Automatic Git integration with sensible commit messages
IDE integration with comment-based requests
Image and web page context support
Voice-to-code capability
Automatic linting and testing
Web chat interface for copy/paste workflows

Who Should Use Aider?

Start new projects with AI assistance

Build on existing codebases with context awareness

Implement new features from voice requests

Fix bugs detected by linters and test suites

Refactor code across large projects

Add test cases and documentation

Aider: Pros & Cons

✓Pros

Works with multiple leading LLM providers
Maps entire codebase for better context
Git integration keeps changes manageable
Supports 100+ programming languages
Voice input for hands-free coding
Automatic linting and testing
IDE integration available
Open source with active community

Frequently Asked Questions about Aider

Does Aider work with my existing Git repository?

Yes. Aider integrates with Git to automatically commit changes with sensible commit messages, so you can track AI-assisted edits alongside your own work without manual versioning overhead.

Can I use Aider with Claude, or am I locked into one LLM?

You can switch between Claude, OpenAI, DeepSeek, and other LLM providers. Aider also supports local models, so you can run it without sending code to a cloud service if that matters for your project.

How does Aider understand context in a large codebase?

Aider maps your entire codebase and feeds that context to the LLM, so it understands your project structure and existing code patterns rather than working blind. This makes refactoring and feature work more coherent across large projects.

Does Aider run only in the terminal, or can I use it in my IDE?

Aider works in your terminal as the primary interface, but it also offers IDE integration so you can request changes through comments in your editor. There is also a web chat interface for workflows that involve copy and paste.