Aider
by Aider · Open-source AI pair programming in your terminal.
Best for
Terminal-first devs who want control
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Aider is a free, open-source AI pair programmer that works in your terminal and commits as it goes.
You bring your own model API key, so it’s as cheap or capable as the model you point it at.
AES Tech verdict
Aider is strongest for terminal-first devs who want control. The main trade-off is that terminal/CLI only, so compare it with the alternatives below before committing to a paid plan.
Scorecard
Pros
- +Free & open source
- +Git-aware edits
- +Model-agnostic
Cons
- -Terminal/CLI only
- -You pay for model API usage
Choose Aider if
- You need terminal-first devs who want control.
- Free & open source matters more than the trade-offs.
- Git-aware edits matters more than the trade-offs.
Skip Aider if
- Terminal/CLI only is a deal-breaker for your team.
- You pay for model API usage is a deal-breaker for your team.
Editorial method
How AES Tech ranks tools
AES Tech ranks tools by practical output quality, workflow fit, business value, risk, and buyer friction. Affiliate relationships never decide rankings.
Output quality
30%Workflow fit
20%Value
20%Trust and risk
20%Buyer friction
10%Check the decision context before buying
Review method
How AES Tech scores output quality, value, workflow fit, trust signals and buyer friction.
Affiliate disclosure
Commercial links are marked sponsored and do not decide rankings, ratings or verdicts.
Privacy notice
How analytics, affiliate click events and direct requests are handled.
Security policy
Responsible disclosure, security.txt and site hardening details.
Ready to try Aider?
Start free, upgrade if it sticks.
Check current pricing and terms on Aider's site before buying.
FAQ
- How much does Aider cost?
- Aider pricing starts at Free (your API key). A free tier is available, so you can try it before paying.
- What is Aider best for?
- Aider is best for terminal-first devs who want control.
- Is Aider worth it in 2026?
- We rate Aider 4.4 out of 5. Aider is strongest for terminal-first devs who want control. The main trade-off is that terminal/CLI only, so compare it with the alternatives below before committing to a paid plan.
- What are the best Aider alternatives?
- GitHub Copilot, Cursor, Windsurf are the closest rivals we have tested. See our full list of Aider alternatives for the ranked breakdown.