An open-source AI coding agent extension (Apache 2.0) that runs in VS Code, JetBrains, Cursor, Windsurf, Zed, and Neovim. Bring your own API key.
A proprietary AI-first code editor forked from VS Code with repo indexing, tab completion, and multi-file editing. $20/month Pro plan.
Cline gives you Cursor-level AI coding without vendor lock-in, but its open-source flexibility costs you 30 minutes of setup and ongoing API billing that Cursor bundles into one subscription.
Cline is an open-source AI coding extension that runs in VS Code (and now JetBrains, Windsurf, Zed, Neovim). Cursor is a proprietary AI-first IDE forked from VS Code. Both tested on the same tasks, scored August 2026.
Pick in 10 seconds
- ✓You want full control over which model and provider you use
- ✓You already have an Anthropic or OpenAI API key
- ✓Vendor lock-in is a dealbreaker for your team
- ✓You want everything bundled in one subscription
- ✓Tab completion speed matters to your workflow
- ✓You prefer a polished, integrated experience out of the box
Round by round
Output reliability
CursorCursor's integrated pipeline produces fewer broken edits than Cline with default settings.
- →Cursor checks its own diff against the codebase before applying changes
- →Cline depends on the model provider and prompt; results vary by configuration
Workflow fit
TieA tie: Cline fits any editor; Cursor is its own editor.
- →Cline runs as a sidebar in VS Code, JetBrains, Windsurf, Zed, Neovim, and even inside Cursor itself
- →Cursor inherits VS Code extensions and keybindings but requires switching to a new editor
Context handling
CursorCursor's repo indexing gives it an edge on large codebases.
- →Cursor indexes the whole repo and keeps the index current as you edit
- →Cline uses the model's context window plus MCP tools for custom context, but has no built-in repo index
Learning curve vs. payoff
ClineCline is free to start but needs API key setup; Cursor needs a subscription but works immediately.
- →Cline: install the extension, add an API key, configure the model. 15 to 30 minutes
- →Cursor: download, sign in, start coding. Tab completion works on first launch
Failure transparency
TieBoth show their reasoning, but Cline exposes the raw model interaction.
- →Cline shows every API call, token count, and cost in real time
- →Cursor shows diffs and reasoning but abstracts away the model layer
Questions people actually ask
Is Cline really free, or does it need a paid API key to work well?
Cline itself is free and open source under Apache 2.0. But useful agentic coding requires a capable model, and those cost money. With Claude Sonnet 4.7, expect $5 to $15 per day for 4 to 6 hours of active use. You can use free models through Ollama, but output quality drops significantly. Cline is free the way Linux is free: no license fee, but you supply the infrastructure.
Can Cline match Cursor's autocomplete speed in practice?
No. Cursor's tab completion is a dedicated, optimized pipeline that predicts your next edit before you type. Cline does not have inline autocomplete. Cline works through a chat sidebar where you describe a task and it edits files. The two tools solve different problems: Cursor accelerates typing, Cline automates tasks. If autocomplete speed is your priority, Cursor wins.
Does Cline work inside Cursor itself, and is that combination worth using?
Yes, Cline runs as an extension inside Cursor. Some developers use Cursor's tab completion for small edits and Cline's agentic mode for larger tasks. The combination works but adds complexity: two AI systems, two context pipelines, two billing sources. Most users pick one or the other after a week of trying both.