Developer builds 3.3MB Windows AI desktop app using WebView2, ditching Electron bloat

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A developer has created LeadHunter AI Desk, a native Windows desktop application for AI-powered B2B cold email outreach that weighs just 3.3MB and launches in under 0.2 seconds. The app was built using VisualNEO Win, a RAD environment that compiles to native Win32 executables, and leverages Microsoft Edge WebView2 — already bundled with Windows 10 and 11 — to render a Tailwind CSS dark-mode interface without shipping a Chromium runtime. This approach cuts idle RAM usage to approximately 35MB, compared to 500–600MB for a typical Electron-based equivalent. The app follows a bring-your-own-key model via OpenRouter, supporting LLMs such as DeepSeek V3 and Claude 3.5 Sonnet, with the developer estimating that generating 1,000 personalized emails costs around $0.04 in API credits. The project is released as free and open-source software, positioning itself as a lightweight alternative to SaaS outreach tools that typically cost $49–$99 per month.

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