Prototyping Tools

Penpot is the open-source design platform for teams that design, build, and scale digital products.

Web-based vector graphics editor with desktop apps, focusing on real-time collaboration and version control for UI/UX design.

Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.

Vector-based Mac tool for digital UI, web, and mobile design, offering prototyping, real-time collaboration, plugins, reusable libraries, cloud sharing, and device preview.

Vector design app for UI, UX, and web work, supporting native editing of .sketch files, real-time collaboration, AI features, and asset export in multiple formats.

Penpot Desktop is an unofficial desktop application for the open-source design tool, Penpot.

Comprehensive workspace for interface design merges code and visuals, syncs tokens and components, imports real-time data, and automates layouts and style tasks.

Claude Design lets you create designs, interactive prototypes, presentations, and more by having a conversation with Claude.

Combines bitmap and vector editing for web, featuring slices, hotspots, and smart guides. Exports multiple formats and is Adobe-compatible.

Devojo delivers a desktop-like experience for Penpot users with the additional of integrating tabs to conveniently traverse back and forth between projects. Offline support is available through the select your own instance option in settings, as well as the theme settings that...

Low-fidelity wireframing tool emulating sketching, built for online teamwork, offering drag-n-drop simplicity, reusable components, interactive prototypes, and exportable wireframes.

Whimsical is a collaborative visual workspace for creating flowcharts, wireframes, virtual sticky notes, and more!.

Combines code-based and visual editing for high-fidelity UI prototyping, real-time multiplayer collaboration, reusable components, and developer handoff.

OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just one click.

We believe the screen is the most important place in the world. That’s why we are dedicated to helping you deliver the best possible digital product experience, with our platform and best practices from your peers.

A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.

Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.

Mockup redefines the entire process of sketching UI & UX projects for iOS. With the extensive collection of tools and features that Mockup provides, it's the ideal app for brainstorming and planning your next app and web design.

Play empowers you to design, build and launch better mobile products, in less time, with fewer barriers - all on your mobile device.

AI-driven prototyping platform enabling rapid UI design, real-time team collaboration, user feedback collection, and data-driven iteration for secure, compliant projects.

Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.

The design platform for wireframing, prototyping, and generating design specs online, integrating smoothly via API with millions of assets available.

ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.

Presentator is a free web application that allows you to present your designs in an easy, organized and interactive way.

AppSlap is a software that allows quick creation and sharing of apps. It provides a platform for users to describe an app and share it with others within minutes. The software is equipped with an AI system that simplifies user interface construction.