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Aider
The open-source classic for git-first AI pair programming.
Open SourceVerified: 2026-04-06
Aider remains one of the most established open-source coding CLIs. Its official repo and site focus on making LLM-driven edits directly inside git repositories, which keeps it especially useful for patch-oriented workflows.
Best for
Developers who want proven open-source ergonomics over a glossy product wrapper.
Review summary
Still the easiest open-source recommendation for developers who want a model-flexible, git-centric terminal coding loop.
Pros
- Open source
- Git-first workflow
- Model flexibility
Cons
- Less opinionated around guarded enterprise workflows
- Can feel bare compared with newer all-in-one agents
Categories
Coding AgentsTerminal Copilots
Install
Aider’s official docs currently recommend the installer helper, with direct pip installation also documented.
Recommended:
python -m pip install -U aider-install
aider-install
Direct pip install:
python -m pip install -U --upgrade-strategy only-if-needed aider-chat
Quickstart
Run Aider inside your repository:
cd /path/to/your/repo
aider
If you want to pin a model explicitly:
aider --model sonnet