Coding assistant
Aider
Open-source AI pair programming in your terminal, with git-aware edits.
Aider is an open-source command-line tool that pair-programs with cloud or local LLMs on your codebase. It maps the repo, commits changes to git, and runs your linters and tests. You pay only for the model you connect.
- Vendor
- Aider
- Price
- Free
- Experience
- Advanced
- Platforms
- Terminal
- Last reviewed
- October 22, 2026
- Free tier
- Yes
Our rating
Overall rating: rank and stars across the whole category. A match % on guides and results is for one job and your answers, so a tool can be a top match and still rank lower overall.
Tied · #9 of 13 in Coding
- Quality
- 3.6
- Features
- 3.9
- Value
- 3.4
- Ease
- 2.5
regular price not published; value neutral
Open-source terminal pair programmer that edits your files and commits each change to git; free, but you pay your own model provider.
Reviewed October 25, 2026.
Pros and cons
Pros
Free and open source under Apache-2.0
Commits each edit to git with a descriptive message, so changes are easy to undo
Works with many model providers, including local models through Ollama
Cons
No hosted plan: you supply an API key and pay the model provider
Terminal-only; needs Python 3.8 to 3.13 or the aider-install script
No push to the main GitHub repo since May 22, 2026
Jobs it fits
- Write code — Pair-program from the terminal on an existing repo: it maps the codebase, commits each change to git, and runs your linters and tests. Fit score 78.
- Add a backend — Can edit backend code in a repo you already have, but it does not host a database or run services. Fit score 60.