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Aider Review 2026 — Open-Source AI Coding Agent for Your Terminal

Aider is the leading open-source AI pair programmer for the terminal. Bring your own API key, get multi-file edits with automatic Git commits. Rated 4.4/5.

Aider Review 2026 — Open-Source AI Coding Agent for Your Terminal

Aider lets developers chat with language models about a codebase, create or modify files, run shell commands, and review changes through Git. It builds a repository map to provide context and can work with cloud or local models.

It supports terminal, browser, IDE, voice, image, and web-page workflows. Aider itself is free and open source, but most model usage requires an API key and provider charges may apply.

Features

  • Edits files through an interactive terminal chat
  • Maps the codebase to provide repository context
  • Automatically commits changes with Git
  • Runs linters and tests and helps fix detected problems
  • Connects to cloud and local language models
  • Adds images and web pages to coding chats
  • Supports voice-to-code requests
  • Apache 2.0 licensed open-source software

Use cases

  • Build a new project from a natural-language request
  • Refactor multiple files in an existing Git repository
  • Run tests and fix failures after code changes
  • Review or undo AI-generated changes with Git
  • Use voice requests to implement features or bug fixes
  • Apply model-generated edits while working in an IDE

Pros

    Cons

      Capabilities

      • Chat about your code — “Usage — How to use aider to pair program with AI and edit code in your local git repo.” source
      • Knows the whole codebase — “Aider makes a map of your entire codebase,” source
      • Runs commands — “Automatically lint and test your code every time aider makes changes.” source
      • Reviews pull requests — “You can also use aider to review PR branches:” source
      • VS Code — “Use aider from within your favorite IDE or editor.” source
      • JetBrains IDEs — “Use aider from within your favorite IDE or editor.” source
      • Command line — “Aider is AI pair programming in your terminal.” source
      • Choice of models — “Control aider with in-chat commands like /add, /model, etc.” source
      • API — “You can script aider via the command line or python.” source

      Get it

      Pricing

      Starting price
      Free
      Prices checked
      2026-10-24
      Read
      by web search

      Free / Open Source

      Free

      • Works with Claude, GPT, DeepSeek, Gemini, local models (Ollama, etc.)
      • Automatic git commits with sensible messages
      • Codebase mapping for larger projects
      • Supports 100+ languages
      • IDE/editor integration and voice input
      • Linting & testing after edits
      Official website