Aider vs Cline: which should you use?
The open-source agent matchup — both free software where you bring an API key and pay per token. Aider is terminal-native with tight git integration (every change is a commit). Cline lives in VS Code with a visual diff-and-approve flow.
Side by side
| Aider | Cline | |
|---|---|---|
| Type | Coding agent | Coding agent |
| From | Free | Free |
| Free tier | Free (open source) — you pay model API costs | Free (open source) — you pay model API costs |
| Best for | Tinkerers who want full control and minimal cost | VS Code users who want an agent without another subscription |
| Skill level | Intermediate to advanced | Intermediate |
| Verified | 2026-06-04 | 2026-06-04 |
The decision
Pick Aider if…
- You're comfortable in the terminal and love automatic git commits
- Minimalism and scriptability appeal
- You want the longest-standing OSS option with deep model flexibility
Pick Cline if…
- You live in VS Code and want the agent in your sidebar
- Visual review of each change before applying matters to you
- You want easy MCP/tool integrations in a GUI
Bottom line
Both reward tinkerers and punish nobody's wallet — token costs of a few dollars/month for light use beat every subscription. Pick by habitat: terminal → Aider, VS Code → Cline.
Full plan details and price history: Aider pricing · Cline pricing. New to all of this? Start with the decision guide.