Aider

Fully offline

Terminal coding agent that edits files via your local model. Git-aware, surgical, fast.

Editorial verdict: “Best terminal-native coding agent for local models. Qwen 2.5 Coder 32B is its sweet spot.

Coding agent
Free
Apache-2.0
4.7 / 5
GitHub ★ 27,000

Compatibility at a glance

Which runtime + OS combos this app works against. Source of truth for "will it run on my setup?"

§ Runtimes supported
ollamaopenai-compat
§ OS / platform
macoslinuxwindows
§ Hardware + model hint
Minimum VRAM
24 GB
Recommended starter model
Qwen 2.5 Coder 32B Q4_K_M

What it is

Aider is for developers who work in the terminal and want a coding agent that respects their existing workflow. It connects to any OpenAI-compatible endpoint—Ollama, llama.cpp, or a remote API—so you can run it fully offline with a local model. The tool’s core strength is its surgical edit format: it produces small, targeted diffs that apply cleanly even with mid-tier models like Qwen 2.5 Coder 32B, and every change is automatically committed as a git commit you can revert. This makes it reliable for iterative refactoring, but the tradeoff is a steeper learning curve compared to IDE-integrated agents. You’ll need at least 24 GB of VRAM to run the recommended 32B-class model for production-quality edits, and the terminal-only interface means no graphical diff review.

✓ Strengths

  • +Terminal-native — no IDE lock-in
  • +Git-aware: every edit is a commit you can revert
  • +Excellent edit-format that minimizes apply failures

△ Caveats

  • Steep learning curve vs IDE-integrated agents
  • Needs 32B-class model for production-quality edits