Lunacy

Free desktop design editor from Icons8 with built-in asset libraries

AI Design & UIFree planOverseas★★★★☆ 4.0

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What is Lunacy?

Lunacy is a free design application for Windows, macOS and Linux built by Icons8. It opens Sketch documents, imports from Figma, and ships with integrated libraries of icons, illustrations and photos that can be dragged onto the canvas without leaving the app. Vector editing, components, constraints and prototyping are all present, so it covers the standard UI design loop. AI enters mainly through Icons8 generators for images and faces exposed in a side panel. The application itself is a conventional vector and UI editor rather than an AI-first product, and it is one of the few serious options that runs natively on Linux.

Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.

Key features

Vector and UI design editing on Windows, macOS and Linux
Opens Sketch files and imports documents from Figma
Built-in Icons8 icon, illustration and photo libraries
Components, constraints and shared styles for design systems
Prototype links, transitions and basic animation previews
Icons8 AI image and face generators available in a side panel

Pros & cons

Strengths

Genuinely free for the core editor with no subscription
Running natively on Linux is rare among design tools
Bundled asset libraries remove a separate search step

Watch out for

Ecosystem and plugin support trail Figma by a wide margin
Real-time collaboration is weaker than cloud-first rivals
AI features depend on Icons8 services and their credit system

Best for & use cases

ui design, icon-heavy interfaces, sketch file editing, offline design work

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FAQ

Is Lunacy really free?

The desktop editor is free to use, including on commercial projects. Costs appear only if you want Icons8 asset libraries beyond the free limits or AI generation credits, which are sold as separate subscriptions.

Can it open Sketch or Figma files?

It opens Sketch documents directly and can import from Figma. Fidelity is good for most layouts, though complex components, plugins and unusual effects may need cleanup after the transfer.

Does Lunacy generate designs with AI?

No. It is a standard vector and UI editor. The AI elements are Icons8 generators for images and faces in a panel, plus asset suggestions. There is no prompt-to-interface feature to speak of.