Design a user interface: tools and selection criteria

To design a user interface, start with the outcome rather than the number of features. These selected tools take different approaches, with strengths and limitations worth comparing. Free and freemium options are distinguished; check quotas and exports before choosing a plan.

How to choose

• Export formats
• Learning curve and templates
• Collaboration and commercial rights

Our selection

• 

  Figma · figma.com

  Collaborative design tool for mockups, interfaces and prototypes.

  Keep in mind: Free plan limited to 3 design files and 3 FigJam files

  Freemium
  Open ↗
• 

  Penpot · penpot.app

  Open-source design and prototyping tool, built to work with developers.

  Keep in mind: Less polished and a bit slower than Figma

  FreeOpen source
  Open ↗
• 

  Lunacy · icons8.com

  Free UI design app (Windows, Mac, Linux), compatible with Sketch files, with built-in icons and photos.

  Keep in mind: Smaller community than Figma

  FreeFrench
  Open ↗

This selection is not a performance ranking. Check individual pages and provider terms before choosing.

Editorial update : 2026-10-06