Napukin

Appearance

Napukin

Simple Wireframing from anywhere.

Try It Now
What is Napukin?
Napukin

No Subscriptions

No monthly fees, no accounts, no cloud. Just open your browser and start wireframing.

Mobile First

Designed to work on your phone, tablet, or desktop. Sketch ideas wherever inspiration strikes.

Works Offline

Install as a PWA and use it without an internet connection. Your work stays on your device.

Open File Format

Documents use the open-source .npkd format — a simple ZIP archive with JSON and assets.

Export to Figma

Take your wireframes further by exporting to Figma's native .fig format.

Full Canvas Editor

Pan, zoom, shapes, text, pen tool, images, layers, undo/redo, and more — all in the browser.

Install the App ​

Napukin is a Progressive Web App — install it directly from your browser for a native app experience. No app store required.

Desktop

In Chrome or Edge, click the install icon in the address bar, or go to Menu → Install Napukin.

iPhone & iPad

Open in Safari, tap the Share button, then tap Add to Home Screen.

Android

In Chrome, tap Menu (⋮) → Add to Home Screen or accept the install banner.