Aider vs Cline
A side-by-side comparison of Aider and Cline to help you choose the right AI coding tool for your workflow.
Cline
Both are free BYO-key open-source tools, but Cline's VS Code-native agent loop with human approval at every step edges out Aider's git-commit-per-change model for the broader developer audience that already works in VS Code and wants agentic capability without leaving it.
You want a full agent loop inside VS Code with per-step approval gates, an auditable Apache 2.0 codebase, and no IDE switch required.
You live in the terminal, want every AI change landed as a reviewable git commit, and value CI-adjacent scriptability over an interactive GUI agent.
Feature Comparison
| Feature | Aider | Cline |
|---|---|---|
| Pricing | Free (BYO API key); pay model provider directly | Free (BYO API key), pay model provider directly |
| Our Rating | 4.5/5 | 4.4/5 |
| Category | terminal assistant | code assistant |
| Website | https://aider.chat | https://cline.bot |
Aider
Open-source terminal AI pair programmer whose real differentiator is one commit per change. Why the git-native model is the tradeoff to evaluate, and who should skip it.
Cline
Open-source VS Code coding agent with a per-step human approval gate and bring-your-own-key billing. The Apache 2.0 license and direct provider billing are the whole reason to pick it over a closed IDE fork.