Aider vs Cline: Side-by-Side Comparison 2026
Aider vs Cline comparison for 2026. Features, pricing, AI capabilities, and editor support analyzed side by side to help you choose the right coding tool for your workflow.
Aider and Cline are both open-source, model-agnostic, agentic tools, and they're often considered together by developers who want full control. The difference is shape. Aider runs in your terminal and treats git as the source of truth (every change is a commit). Cline runs as a VS Code extension and treats the editor as the surface. Both let you bring any model. Both let you self-host. The choice usually comes down to whether you prefer working in a terminal or an editor.
Aider
Open-source CLI tool for AI pair programming. Works with OpenAI, Claude, and other models to edit code in your local git repo.
- ✓ Git-aware editing
- ✓ Multi-file editing
- ✓ Model agnostic
- ✓ Voice coding
- ✓ Image support
Free · 1 plan
Cline
Open-source AI agent for VS Code that plans, edits, and runs code with a focus on transparency. BYOK (Anthropic, OpenAI, OpenRouter, local models) or paid Cline Cloud with included credits.
- ✓ AI chat
- ✓ Agentic mode
- ✓ Multi-file editing
- ✓ Terminal commands
- ✓ Test generation
Free · 2 plans
| Feature | Aider | Cline |
|---|---|---|
| Category | CLI | Agent |
| Starting Price | Free | Free |
| Model Family | Multi-model (any) | Multi-model (any) |
| Documentation | — | ✓ |
| Voice Input | ✓ | — |
| Git Integration | — | ✓ |
| Open Source | Yes (Apache 2.0) | Yes (Apache 2.0) |
Pricing verified Jun 5, 2026. Aider pricing | Cline pricing
Key Differences
- Form factor: Aider is a CLI. Cline is a VS Code extension.
- Git posture: Aider commits every change with a generated message; git log reads like a changelog. Cline edits files and lets you handle commits.
- Approval flow: Aider streams diffs and applies; you control with /undo and git. Cline has explicit Plan/Act modes with per-step approval.
- Model strategy: Both BYOK and both support local Ollama. Roughly equivalent on model flexibility.
- Cost: Both are open source and free; you pay only model API costs.
Which Should You Choose?
Pick Aider if you live in a terminal and want git-centric, model-agnostic AI coding. Pick Cline if you live in VS Code and want the same model freedom inside the editor. Read our full Aider review and Cline review for the deeper breakdown.