# Aider

> AI pair programmer in your terminal

Aider is an open-source AI pair programmer that runs in the terminal and allows developers to edit code in local git repositories using natural language. Unlike cloud IDEs, Aider works directly with your existing codebase in any editor — making multi-file edits, explaining code, writing tests, and committing changes via git. It supports all major LLMs including Claude, GPT-4, and locally running models, giving developers a privacy-preserving option for AI-assisted development that integrates into any existing workflow without forcing a change in development environment.

## Quick facts

- Categories: Developer Tools, Code Assistant
- Pricing: Free
- Free plan: Yes
- Official site: https://aider.chat
- Last checked: 2026-10-23

## Key features

- Terminal-based AI coding
- Multi-file editing across repos
- Auto git commits with descriptions
- Supports GPT-4, Claude, Gemini
- Voice mode support
- Full codebase map

## Use cases

- Making changes across multiple files
- Using AI from the command line
- Contributing to open-source repos
- Developers who prefer terminal workflows

## Links

- Nextool.ai page: https://nextool.ai/tools/aider-terminal/
- Alternatives: https://nextool.ai/alternatives/aider-terminal/

Source: Nextool.ai (https://nextool.ai/tools/aider-terminal/). Pricing and features change; confirm on the provider's site before relying on them.