Cline vs Aider

Short answer: neither wins at everything.

Pick Cline if you want a free, open-source agent inside your code editor.

Pick Aider if you want a free, open-source helper that works in your terminal alongside git.

Cline vs Aider side by side

	Cline	Aider
What it is	Free, open-source coding agent for your code editor	Free, open-source coding helper for the terminal
Made by	Cline	Aider
Price	Free	Free
Free plan	Yes	Yes
Good at	Open source (Apache-2.0)	Open source (Apache-2.0)
Who it's for	Developers	Developers
Where it runs	code editor, command line	terminal (git-native)
Status	Current	Current
Sources	github.com	github.com

Related comparisons

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Questions people ask

Is Cline or Aider better?

It depends on what you do. Pick Cline if you want a free, open-source agent inside your code editor. Pick Aider if you want a free, open-source helper that works in your terminal alongside git.

Is Cline free?

Yes. Cline has a free plan. Plans: Free.

Is Aider free?

Yes. Aider has a free plan. Plans: Free.

Can I try both Cline and Aider?

Yes. Both have a free plan, so you can try each one on the same task and keep the one you like.

How does WhichBot decide?

Hector uses a written rubric: everyday usefulness, cost and free plans, privacy, reliability, ease of use, availability and safety. Rankings are one input, not the answer.

Facts come from the companies' own pages, linked above, and were last checked Oct 28, 2026. Prices are US and can change. Picks are Hector's: no paid picks, sponsors always labeled, and no sponsorship from AI labs. Our policy.