Void vs Cursor vs Windsurf: AI IDE 2026
TL;DR
Void is the only open-source option: Apache 2.0 licensed, free forever, runs any LLM locally with zero data leaving your machine. Cursor ($20/mo) leads on raw agent power — 8 parallel agents, sub-200ms autocomplete, and the most mature IDE AI workflow on the market. Windsurf ($15/mo, acquired by Cognition AI) ranks #1 in the LogRocket 2026 AI Dev Tool Power Rankings and beats Cursor for large-codebase context understanding. If data sovereignty matters, choose Void. If you want best-in-class tooling and will pay for it, Cursor or Windsurf.
Quick Comparison
| Void | Cursor | Windsurf | |
|---|---|---|---|
| License | Apache 2.0 (open source) | Proprietary | Proprietary |
| Price | Free | $20/mo (Pro) | $15/mo (Pro) |
| GitHub Stars | 25,800 | — | — |
| Base Editor | VS Code fork | VS Code fork | VS Code fork |
| Agent Mode | Yes (any model) | Yes (8 parallel) | Yes (Cascade) |
| Local LLM | Yes — Ollama, LM Studio | No | No |
| Data Privacy | No backend — direct to LLM | Code via Cursor servers | Code via Windsurf servers |
| Codebase Context | Good | Excellent | Excellent (Codemaps) |
| MCP Support | Yes | Yes | Yes |
| Free Tier | Unlimited (BYOK) | 2,000 completions/mo | Generous credit tier |
| YC-backed | Yes (W25) | Yes | No (acquired by Cognition) |
Void: Open Source, No Backend, Any Model
Void launched in April 2026 as a VS Code fork positioned as the privacy-first alternative to both Cursor and Windsurf. Its defining characteristic is architectural: there is no Void backend. When you use Agent mode or ask for an inline edit, your code goes directly to whichever LLM you specify — OpenAI, Anthropic, Google Gemini, Groq, or a local model via Ollama or LM Studio.
This is meaningfully different from Cursor and Windsurf, where your code passes through the provider's own infrastructure before reaching the underlying model. For developers at regulated companies (HIPAA, SOC 2, financial services) or anyone working with proprietary codebases, the no-proxy architecture removes an entire category of risk.
What works well. Agent mode in Void supports any model — including open-source models like DeepSeek, Llama, and Qwen that don't natively support tool calling. Void auto-detects capability (agent/gather mode, FIM for autocomplete, thinking/reasoning) and adapts accordingly. Checkpoints let you jump between LLM edits non-destructively. Agent mode has terminal access, MCP tool access, and can search, create, edit, and delete files. All VS Code extensions work.
What you give up. Void's autocomplete is functional but not at Cursor's Tab level of speed and accuracy — sub-200ms predictions are Cursor's competitive moat and Void hasn't matched it yet. The agent can fix lint errors after editing, but the overall agent reliability for complex multi-step tasks currently trails Cursor's more mature implementation.
Who it's for. Developers who want zero-cost AI coding and are willing to manage their own API keys. Teams at companies where data sovereignty is non-negotiable. Developers who want to run inference locally on GPU hardware and keep costs predictable. With 25,800 GitHub stars and 46+ contributors, Void has strong community momentum.
For a step-by-step setup, see How to Install and Self-Host Void Editor. If you want to run a local LLM alongside Void, see Self-Hosted LLM Guide: DeepSeek and Qwen.
Cursor: The Market Benchmark
Cursor is the AI IDE that everyone else benchmarks against. Since its launch it has defined what "AI coding" means in practice — not just autocomplete, but a full agentic workflow where the IDE understands your codebase, can modify multiple files at once, and can complete complex tasks with minimal hand-holding.
Pricing. Cursor uses a credit-based system (switched from request-based in June 2025). Pro at $20/mo includes a credit pool that auto mode doesn't drain — auto mode is unlimited. Manually selecting premium models (Claude Sonnet, GPT-4o) draws from your pool. Pro+ is $60/mo for 3x credits. Ultra is $200/mo for power users. Business is $40/user/mo with SSO and admin controls. Students get one year of Pro free.
What Cursor does best. Tab autocomplete is Cursor's crown jewel — sub-200ms predictions that understand surrounding context deeply enough to feel like it's reading your mind. Agent mode runs up to 8 parallel agents with cloud VMs, making it faster at complex multi-file tasks than any competitor. The extension ecosystem is mature, the UI is polished, and the team ships fast.
The tradeoffs. Your code flows through Cursor's servers before reaching any LLM — not just to the LLM provider, but through Cursor's own infrastructure. This is fine for most developers but a blocker for enterprise compliance use cases. At heavy usage, actual spend can reach $40-50/mo beyond the base $20, and the credit system introduced complexity that some users find opaque. Cursor is also a hard VS Code fork, meaning your productivity depends on Cursor's commercial viability.
Who it's for. Individual developers or teams where AI coding productivity is worth $20-40/month per seat, data privacy concerns are manageable, and you want the most battle-tested AI IDE workflow available.
Windsurf: Codebase Intelligence at $15/mo
Windsurf (originally from Codeium) was acquired by Cognition AI in December 2025 for approximately $250M. As of February 2026, it ranked #1 in LogRocket's AI Dev Tool Power Rankings — ahead of Cursor, which came in third. With 1 million+ users and 4,000+ enterprise customers including FedRAMP High authorization, Windsurf has moved beyond startup phase into serious enterprise territory.
Pricing. Free tier is the most generous in this comparison — a meaningful credit pool that covers light-to-moderate use. Pro is $15/mo (cheaper than Cursor's $20), Pro Ultimate is $60/mo for unlimited usage, Teams is $30/user/mo, and Enterprise starts at $60/user/mo.
Cascade and codebase context. Windsurf's standout feature is Cascade — an agentic AI system that builds a semantic map of your entire repository before executing changes. Codemaps, Fast Context, and Arena Mode give it better large-codebase understanding than Cursor. The consensus from developer communities in 2026: if your codebase is large and complex, Windsurf's context handling is more reliable. If you're doing fast iteration on smaller files, Cursor's Tab autocomplete wins.
What you give up. Like Cursor, your code goes through Windsurf's servers. The Cognition acquisition introduces some uncertainty — Cognition builds Devin (the autonomous software engineer), and it's not yet clear how Windsurf's roadmap will shift under new ownership. The agent is powerful but less configurable than Void's (no local model support, no custom routing).
Who it's for. Developers and teams who want the best codebase-wide AI understanding, prefer $15/mo over $20/mo, and work on large repositories where Windsurf's context indexing pays off most.
Privacy: Where Void Wins Decisively
All three editors support connecting to cloud LLMs (OpenAI, Anthropic, Google). The critical difference is what happens to your code in transit.
Cursor and Windsurf route your code through their own infrastructure first. When you trigger an AI action in Cursor, the request goes: your machine → Cursor's servers → LLM provider. Windsurf works the same way. These companies use this architecture for caching, billing, model routing, and telemetry. Both have privacy policies and enterprise agreements that address this — but the architectural reality is that a third party touches your code.
Void's architecture eliminates the intermediary entirely. Your code goes: your machine → LLM provider (or your local Ollama instance). There is no Void backend. For local models, the path is: your machine → your GPU. Nothing leaves your network.
For enterprise security teams evaluating AI coding tools, this is often the deciding factor. Void with a self-hosted LLM (DeepSeek or Llama on your own hardware) gives a provably air-gapped AI coding workflow. Cursor and Windsurf cannot make that claim regardless of their contractual commitments.
Agent Mode Compared
All three editors support agentic coding — multi-file edits, terminal access, iterative task execution. The implementations differ in meaningful ways.
Cursor's Agent runs up to 8 instances in parallel using cloud VMs. This is the fastest route for complex, parallelizable tasks. The agent is battle-hardened by millions of users and handles real-world codebases reliably. Cursor also supports background agents that run while you work on something else.
Windsurf's Cascade emphasizes depth over parallelism. Rather than 8 simultaneous agents, Cascade builds a semantic understanding of your codebase before taking actions — reading files, running terminal commands, iterating on solutions. For tasks that require understanding how 50 files interact before touching anything, Cascade's approach produces fewer wrong-file edits than Cursor.
Void's Agent is the most flexible — it runs on any model, including open-source ones. You can point it at DeepSeek R1 running locally and get agentic coding without any cloud dependency. The trade-off is that Void's agent is newer and less battle-tested. For complex tasks, Cursor and Windsurf are more reliable today.
Pricing in Practice
| Plan | Void | Cursor | Windsurf |
|---|---|---|---|
| Free | Unlimited (BYOK) | 2,000 completions/mo | Generous credits |
| Entry paid | — | $20/mo (Pro) | $15/mo (Pro) |
| Heavy use | — | $60/mo (Pro+) | $60/mo (Ultimate) |
| Teams | — | $40/user/mo | $30/user/mo |
| Enterprise | — | Custom | $60/user/mo |
| Annual discount | — | 20% | — |
Void's "free" is only free if you already have API keys — you still pay OpenAI, Anthropic, or Google for API usage. On a typical mid-level developer workflow (~$10-15/mo in API calls), Void roughly matches Windsurf's Pro price. But with a local model (DeepSeek, Llama via Ollama), Void becomes genuinely free with no ongoing API costs — only the hardware you already own.
One underrated factor: team size changes the calculus significantly. At 10 seats, Windsurf saves $50/mo over Cursor ($150 vs $200). At 50 seats, that's $250/mo — enough to justify a dedicated evaluation. Cursor's Business tier ($40/user) adds SSO and admin controls that Windsurf's Teams tier ($30/user) also covers, so the per-seat gap persists at team scale.
VS Code Extensions and Migration
All three editors are built on VS Code's open-source core (VSCodium/vscode), which means your existing extension library transfers completely. Themes, language servers, debuggers, linters — everything works. This is a meaningful advantage over switching to a fully different editor like Zed or Neovim, where the ecosystem is different.
The migration path between Cursor, Windsurf, and Void is low-friction. Settings sync, keybindings, and workspace configurations carry over because the underlying editor is identical. A developer can realistically run a 2-week trial of any of these tools and switch back without losing their setup. This lowers the cost of experimentation considerably — you're evaluating the AI layer, not committing to a new editor paradigm.
One practical note: Cursor's Composer and Windsurf's Cascade each have proprietary UI panels that don't exist in standard VS Code. Void's equivalent panels are also non-standard. Each has its own keyboard shortcuts and workflow conventions. Plan for a 1-2 week ramp to reach full productivity on whichever tool you choose, even if you're coming from a VS Code-based workflow.
When to Use Which
Choose Void if:
- Your company has data sovereignty requirements or code cannot leave your network
- You want to run local models (Ollama, LM Studio) with zero cloud dependency
- You prefer open-source tooling you can audit and self-host
- Budget is a constraint and you're willing to manage API keys
Choose Cursor if:
- You want the highest-quality Tab autocomplete available (sub-200ms, deeply context-aware)
- Agent parallelism matters — 8 simultaneous agents for large tasks
- You're an individual developer who values polish and wants the most mature AI IDE
- Students: the free Pro year for verified students is unmatched
Choose Windsurf if:
- You work on large, complex codebases where codebase-wide context understanding matters most
- $15/mo vs $20/mo is meaningful (teams with many seats)
- You want enterprise features with FedRAMP High authorization
- The LogRocket #1 ranking and Cognition backing give you confidence in the roadmap
For most developers making the switch from GitHub Copilot or starting fresh with AI coding in 2026, the decision comes down to two questions: does privacy matter enough to manage your own API keys (Void), or do you want fully managed tooling and will pay $15-20/mo for it (Windsurf or Cursor)?
See also: Best Open Source Cursor Alternatives in 2026 for more open-source AI coding options beyond Void.
Methodology
Comparison data sourced from official documentation, GitHub repositories, and pricing pages as of April 2026. GitHub star counts from github.com/voideditor/void. Pricing from cursor.com and windsurf.com. LogRocket ranking from February 2026 Power Rankings. Windsurf acquisition data from Cognition AI press release (December 2025).