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Lunacy

Free UI design tool that opens Sketch files, imports Figma

Screenshot of Lunacy website
icons8.com, homepage
Design UI layouts with a free tool that runs on Windows, macOS, and Linux, opens Sketch files, imports from Figma, and works offline.From the listing

About Lunacy

Design UI layouts with a free tool that runs on Windows, macOS, and Linux, opens Sketch files, imports from Figma, and works offline.

Lunacy is a free graphic design tool from Icons8, the company behind the icon and graphics library of the same name. It covers the core work of UI and web design: responsive layouts, vector editing, and auto layout. The app opens and edits .sketch files natively and can import projects directly from Figma, which makes it a practical option when your team works across different design tools.

It runs as a native app on Windows, macOS, and Linux, and there is also a browser version. Documents can be stored locally, so you can keep working without an internet connection, or you can use real-time collaboration and Lunacy Cloud when working with a team. That mix of offline desktop apps and shared cloud documents is what separates it from browser-only design tools.

Beyond the canvas, Lunacy ships with built-in Icons8 graphics libraries and UI kits, so icons, illustrations, and photos are available without leaving the app. AI-assisted features include a background remover, an image upscaler, an avatar generator, and a text generator, and the site also lists live web-page editing. The tool is free, with a paid subscription also offered; the page shows prices of $12/month and $9/month.

Best for:

  • UI and web designers who want a free desktop design tool
  • Windows or Linux users who need to open and edit Sketch files
  • Teams moving projects between Figma and other tools
  • Designers who work offline or keep documents stored locally
  • Teams that need real-time collaboration on shared design files
  • Anyone who wants Icons8's icon and photo libraries built into their editor

Frequently asked questions

Is Lunacy free?

Yes, there is a free version. The site also lists a paid subscription, with prices shown at $12/month and $9/month.

Can it open Sketch files?

Yes. Lunacy opens and edits .sketch files, and it can also import projects from Figma.

Does it work offline?

Yes. The tool supports both online and offline work, and documents can be stored locally on your machine.

What platforms is it available on?

There are native apps for Windows, macOS, and Linux, plus a browser version. The page does not show dedicated iOS or Android apps.

Is it open source?

The site does not present Lunacy as open source, so treat it as proprietary software.

Who makes it?

Lunacy is made by Icons8, which also provides the graphics libraries built into the app.

Alternatives

  • Keep Design System — pick it if you need a design system for consistent websites and dashboards rather than a full design editor.
  • Duply — better when you need to generate many personalized images from one template instead of designing each layout by hand.
  • PicStock.ai — useful if you mainly need curated AI-generated stock photos rather than a design workspace.
  • Translate.Photo — pick it when your priority is localizing existing creative assets across many languages.

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