Cline vs Windsurf
Side-by-side comparison of Cline vs Windsurf. Pricing, target audience, what each is actually best for, and a no-nonsense recommendation for who should pick which.
Cline is the open-source agent that runs as a VS Code extension. Bring-your-own-API-key economics — no subscription on top of LLM costs.
Best for: Developers who want to keep their existing VS Code setup and pay LLM API costs directly.
Windsurf is the Cursor competitor with Cascade agent and Supercomplete. Commercial, $15/mo Pro tier, now owned by Google.
Best for: Developers who want a polished, commercial AI-first IDE alternative to Cursor.
Side-by-side
| Cline | Windsurf | |
|---|---|---|
| Pricing | Free · Free + open source. You pay only for the LLM API you bring (Claude, GPT, Gemini, DeepSeek, or local models) | Freemium · Free (limited) / Pro $15/mo / Teams $35/user/mo / Enterprise custom |
| Primary category | Code Assistants | Code Assistants |
| Target audience | Developers who want a coding agent in their existing VS Code setup without switching IDEs or paying a subscription on top of LLM API costs. | Professional developers evaluating AI-first IDEs — especially Cursor users curious about alternatives. |
| Website | https://cline.bot/ | https://windsurf.com/ |
What is Cline?
Open-source AI coding agent that runs as a VS Code extension (not a fork). Bring-your-own-API-key — pay only LLM costs, no Cline subscription.
What is Windsurf?
AI-first IDE forked from VS Code, built around the Cascade agent for autonomous multi-file edits. The Cursor competitor that ate Codeium's old autocomplete product.
Which one should you pick?
Cline and Windsurf both compete against Cursor but in opposite ways. Windsurf competes head-on with the same product shape — a forked IDE with an agent and tab autocomplete, just at a lower price point ($15 vs $20/mo Pro).
Cline competes by being free and open source. It runs as a regular VS Code extension, not a fork, and uses whatever LLM API key you bring. For developers comfortable managing their own API keys, this is significantly cheaper for heavy use — and you keep your existing VS Code setup untouched.
Windsurf for developers who want the polished commercial experience at lower cost than Cursor. Cline for developers who care more about ownership, openness, and per-token cost control than UI polish.