Penpot

It 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. ProtoPie runs on macOS & Windows and the player app is on iOS and Android.

Uizard is an AI-powered design tool released in 2018. Uizard's easy-to-use drag-and-drop editor and its AI features help users design and prototype user interfaces for web and mobile applications.

Figma is the first interface design tool with real-time collaboration. It keeps everyone on the same page. Focus on the work instead of fighting your tools.

It is the best in the world of graphic design and image processing software that will realize any of your ideas. Create and enhance photos, illustrations and 3D graphic objects.

Easily create complex shapes with our state-of-the-art vector boolean operations and take advantage of our extensive layer styles.

The industry-standard vector graphics app lets you create logos, icons, sketches, typography, and complex illustrations for print, web, interactive, video, and mobile.

A vector-based tool developed and published by Adobe Inc for designing and prototyping user experience for web and mobile apps.

Collaboration app for designers & developers. Supports Sketch and Photoshop (on beta!).

Lottie is a mobile library for Android and iOS that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile!

The industry's leading page layout and design software enables you to create, proof and publish documents for print and digital media. Ir has everything to create posters, books, digital magazines, eBooks, interactive PDFs and more.

It is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.

Framer is a JavaScript framework that makes creating realistic prototypes a breeze – complete with filters, spring physics and full 3D effects. Framer Generator is a desktop app that imports the resources and folder hierarchy from Photoshop files (Sketch coming soon). Import your design and immediately start to add interaction and animation.

It is a cloud-based service for people who love photography, it gives you everything you need to edit, organize, store, and share your photos across desktop, mobile, and web.

No bloat, no gimmicks, just all the tools you need, implemented how you always dreamed. It is a stripped back, pro-end workhorse that will always get your job done. It was created to thrive on the electric pace of the latest computing hardware. Live, responsive and incredibly fluid, it’s simply a joy to use.

It is an online whiteboard for teams to collaborate, brainstorm, map out flows, and more. It is easy to learn and fun to use, so anyone can participate and share their ideas.

It is professional quality vector graphics software which runs on Windows, Mac OS X and Linux. This software can be used to create or edit vector graphics such as illustrations, diagrams, line arts, charts, logos and complex paintings.

It is born to work hand-in-hand with the latest powerful computer technology, it’s fully-loaded photo editor integrated across macOS, Windows and iOS.

Express your creativity with Material, an animation and graphics framework for Google's Material Design and Apple's Flat UI in Swift.

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

It is a set of user experience development tools that unify design, prototyping and implementation of high quality, native apps for iOS and Android.

Origami is a free toolkit for Quartz Composer—created by the Facebook Design team—that makes interactive design prototyping easy and doesn’t require programming.

It is a Mac app used by designers around the world to create interactive and animated prototypes of their app designs. It lets designers quickly make interactive prototypes of their mobile, desktop, or web apps.

Fiber UI Kit is the perfect starting place for your next project. Each element has been designed to work independently or as one seamless flow. It’s a full-fledged prototype with customizable components.

It is a graphical programming interface that provides designers access to parametric modeling and data-driven customized workflows for building information modeling (BIM). It can run as an addin for Autodesk Revit and Autodesk Vasari, with the ability to manage Revit project files and family definitions, or it can run as a standalone program. It allows users to control complex geometry, construct parametric relationships, manage data, and automate tasks.

Pop is an extensible animation engine for iOS and OS X. In addition to basic static animations, it supports spring and decay dynamic animations, making it useful for building realistic, physics-based interactions. The API allows quick integration with existing Objective-C codebases and enables the animation of any property on any object. It's a mature and well-tested framework that drives all the animations and transitions in Paper.

Create interactive user flows and stunning design presentations to engage your audience in synchronous or asynchronous design critique.

It is a graphic editor developed for macOS, and built upon a combination of open-source and macOS technologies. It uses Core Image and OpenGL technologies that use the Mac's video card for image processing.

Avocado is an open source interaction design toolbox built by​ IDEO.​ It ​enables designers to make quick interactive prototypes without writing a line of code.​ ​Built on top of Facebook's Origami framework, Avocado provides ready-to-use patches that can be easily combined to create fully-customized prototypes.​ Official announcement: http://labs.ideo.com/2014/05/27/avocado/

Supernova converts any mobile design to full-fledged native applications, giving the developers extra time to do actual coding. No need to export resources, write navigation, connect it to components created by hand, read styles, apply styles, copy-paste information..

Frontify is a cloud-based brand management platform for creators and collaborators of brands, connecting everything (and everyone) important to the growth of your brand.

Readymag—an online platform for website creation focused on design & creativity. Advanced typography. Powerful animations. Code injection & third-party tool integrations.

It is a new platform inspired by the world’s best design teams. Design, prototype, and animate—all in one place.

It provides web designers with a lightweight, effective means of creating graphics for their web pages without getting deep into code or lost amid multiple colour palettes.

It delivers all design components and assets to your team members where they work enabling quick commenting, implementation, and testing. It supports your team by connecting each team member with the collaboration and automation tools they need to work more efficiently.

Create animations that flow naturally from the user's movements. Rather than animating properties for a set amount of time, impulse takes a start position, end position, and velocity.

It is an app that allows you to draw controls, icons, and other graphics elements like you would in programs like Sketch, Photoshop, or Illustrator.

It is an easy-to-use animation tool that runs in the browser. It helps designers make animations for videos, websites or apps in a simple way, while making it easier to collaborate with Product & Marketing teams. It's like Figma for motion design.

Mockplus is a web-based collaborative design platform which connects designers, product managers and developers, built for making design faster and easier.

Easily produce high-quality images, panoramas, and standard or 360° VR videos in seconds! For architecture, construction, urban planning, and landscaping professionals, it combines an intuitive icon-driven interface with the power of Unreal Engine.

When you have a limited budget, still want to get a logo for your business or websites, then online logo designing platform would be an excellent alternative to professional designers and designing agency. DesignEvo is a cross-platform (web-based, Android, iOS, Mac) service to help you create a professional-looking logo. It would let you enjoy design the logo designing.

It is well suited for showcasing products, e-learning, game development, advertising and webdesign. It is an open source framework for creating and displaying interactive 3D computer graphics in web browsers

Equipping you with hundreds of symbols and dozens or styles configurations, it makes sure the design stays consistent across all of your applications and platforms.

PixelSnap is an app for macOS that makes it easier for designers and web-developers to measure anything on their screens by just clicking and dragging around the cursor.

Prott is a new and powerful prototyping tool for designing and developing mobile apps. Through rapid prototyping you can shape your ideas instantly. No matter where you are, you can test your prototypes and share your ideas and comments. Continually improve your design without writing a line of code.

It is a web-based layout and design application used by businesses, schools, and individuals to create engaging and attractive visual communication, right in a web browser. It offers real-time collaboration, an intuitive drag-and-drop interface, and polished views for print and digital publishing.

It is the easiest online design tool to create animations and graphics for social and web. Create like a pro. No design skills needed. It provides you with over 25,000 templates for all major social media, blogging, and marketing formats. Create images, videos, and animations to suit your marketing needs.

It is a free and advanced online photo editor, the app let you edit and transform photos and templates directly in the browser, it even open photoshop files online. Pixlr also has a simplifed version for quick edits and template design.

It is a prototyping tool that lets you design, test and get feedback on your app ideas quickly and without needing to know how to code.

It is a UX research offering powerful research tools for improving the usability of websites and apps, from prototypes to production.

It is an online poster and flyer maker to help you turn creativity into beautiful posters and flyers with great ease so that to save your time and energy. It offers many professional editing tools for customizing your posters and flyers the way you want, such as adjusting size, position, rotation, changing text font, color, effect, alignment, applying specific background and managing layers.