agent
Open source
free (BYO API key)
4.6/5

Aider

Terminal-based AI pair programmer. Run in your project directory, describe a change, it edits files and creates meaningful git commits. Works with any LLM — local Ollama, Anthropic, OpenAI, etc.

By Fredoline Eruo·Last verified May 6, 2026·30,000 GitHub stars

Overview

Terminal-based AI pair programmer. Run in your project directory, describe a change, it edits files and creates meaningful git commits. Works with any LLM — local Ollama, Anthropic, OpenAI, etc.

Pros

  • Open source
  • BYO LLM (local OK)
  • Git-aware diffs
  • Mature project

Cons

  • Terminal-only
  • Quality scales with the underlying model

Compatibility

Operating systems
macOS
Linux
Windows
GPU backends
n/a (uses cloud or local API)
LicenseOpen source · free (BYO API key)

Get Aider

Frequently asked

Is Aider free?

Aider has a paid tier (free (BYO API key)). Check the pricing page for current terms.

What operating systems does Aider support?

Aider supports macOS, Linux, Windows.

Which GPUs work with Aider?

Aider supports n/a (uses cloud or local API). CPU-only inference is also possible but slow.

Reviewed by RunLocalAI Editorial. See our editorial policy for how we evaluate tools.