Best Free Prototyping Software of 2025

Miro helps you keep your team's minds in sync. Miro is a virtual whiteboard and remote collaboration tool that helps cross-functional teams collaborate more effectively to create great things. Miro isn't a video conferencing tool, and Miro doesn't try to be. Miro's goal is to provide a platform for teams who work most effectively across areas, geographies, timezones to get more out of their ideas when they can't all be in the office together at the same time. It includes over 200 pre-made templates to capture and visualize ideas, collaboration tools like comments, chat screen sharing and video chat and integrations with popular business tools. Miro AI is your team's ultimate boost, empowering you to unleash your creativity and productivity like never before. We are your launchpad to the future, providing the assistance you need to bring your next big idea to life. Let Miro AI help you unlock the full potential of your team's innovation and collaboration capabilities.

Lucidchart is a comprehensive visual collaboration platform that empowers teams to create intelligent, data-driven diagrams for process mapping, team planning, systems architecture, and more. With features like AI-powered diagram generation, real-time collaboration, and data integration, Lucidchart helps users quickly visualize their systems and workflows with ease. Whether you’re building technical diagrams or mapping out complex organizational structures, Lucidchart streamlines the process, saving you time and improving clarity. It integrates with a variety of popular tools such as Jira, Slack, Confluence, and Notion, making it an invaluable tool for enhancing teamwork, driving decisions, and accelerating innovation across your organization.

Lunacy is a vector graphic software for UI/UX and web design. It's faster than Figma, smarter than Sketch! 100% FREE Lunacy is absolutely free for personal and commercial use. CROSS-PLATFORM APP Lunacy runs on Windows, macOS, and Linux. REAL-TIME COLLABORATION Users working on different platforms can collaborate over the same design in real-time. LOW SYSTEM REQUIREMENTS Lunacy is not demanding on hardware and runs smoothly even on moderate laptops. BUILT-IN GRAPHICS Icons Photos Illustrations AI-POWERED TOOLS ONBOARD Background remover Image upscaler Avatar generator Text generator WORKS ONLINE AND OFFLINE You can work both with cloud and local documents. It's up to you to choose. You can switch between the cloud and local modes whenever you want. MINIMUM LEARNING CURVE If you have experience with Sketch or Figma, in Lunacy you’ll feel like home. FULL SUPPORT FOR SKETCH FILES Open Edit Save NO BOUNDS Thanks to the native support for the Sketch format, you can use Lunacy with all major hand-off and version control tools like Avocode, Zeplin, Abstract, Simpli, etc. If it is necessary, you can easily import .sketch files to Figma or XD.

Appy Pie offers a user-friendly platform for mobile app development, allowing individuals to craft an app in just three simple steps, all without needing any coding skills. This DIY app builder empowers users to design impressive applications for both iPhone and Android devices by utilizing easily integrable plugins and a range of robust features, including hyper-local integration, push notifications, customer relationship management integration, real estate IDX, as well as virtual and augmented reality capabilities, along with app analytics and much more. With such a comprehensive set of tools, users can bring their app ideas to life in a seamless manner.

Where teams collaborate to design. Figma allows teams to create, test and ship better designs from beginning to end. Your work will be fast and powerful. Figma is packed with design tools you already love and unique inventions such as the Arc tool or Vector Networks. Figma keeps your ideas flowing. You don't need to stop to save, export, or install. It's what cloud software should do. Animated prototypes make your ideas come to life faster and feel just like the real thing. Get feedback from users and test your ideas earlier and more often. You can share a link to your prototypes or design files and get feedback from others. You can also jump into the same file as your colleagues, no matter where you are located in the world, and co-edit it live. You can create a scalable design system that is easy to manage and accessible for your company. If all designers speak the same language, everyone is more empowered to do their best work.

Remove boundaries between structured design and free-form design. Create interface inventory in just one click. Check your design files against guidelines. With prompts, you can create fully editable UI design. Drag a magic-box to get the best component. All in one platform, you can design, align and build with your entire team. Create designs with a high-performance UI tool. Compose a symphony that combines collaboration and creativity. Align your team. Push your creativity to the limit. Create interactive prototypes in high-fidelity for quick validation. Self-developed rendering engines overcome performance limitations. Optimized for different design and collaboration scenarios. Unique structure ensures stability and low memory usage. All in one place, from AI-generated first draft UIs through to collaborative editing. Create names, reviews and addresses in bulk.

Anima equips product teams with a design-to-code superpower. Designers have total independence to design high-fidelity prototypes that behave like the final product in real-time, whilst using their own design tools (Figma, Adobe XD, and Sketch) while easing the handoff process to developers but handing over developer-friendly, component-based HTML, React, and Vue code. Anima lets you collaborate with teammates and stakeholders, and share a rich user experience, allowing you to get a real feel for your product before it goes to production.

The digital product design platform that powers the best user experiences in the world. Create rich interactive prototypes. Communicate seamlessly, get feedback, and move projects along. A digital whiteboard allows you to see your team's best ideas. Beautifully collect and display inspirations, designs, and more. Amazingly better handoffs between design and development. InVision Studio is the most powerful screen design tool in the world. With intuitive vector-based drawing and flexible layering, you can quickly transform your ideas into stunning screen designs. You can quickly and easily animated transitions and added micro-interactions to transform static screens into working prototypes. You can easily navigate the entire design process from one place, keeping everyone informed of any changes and keeping them fully engaged. All brand and UX components--including usage documentation--are managed in a single place. You can access libraries from InVision Studio and Sketch. Push or pull changes in a matter of seconds.

Penpot the first open-source design and prototyping platform. It makes it easier than ever for designers and developers to collaborate within the workflows they’re comfortable using. Penpot’s powerful design interface invites developers to write code in harmony with the design process like no other tool.

Pencil is a user interface design tool developed by Evolus, which operates on technologies provided by Mozilla and is available as open source. This innovative tool allows analysts and developers to swiftly create application interfaces, facilitating effective communication with customers during the requirements gathering phase and serving as a foundation for collaborative application development. The creation of the Pencil project is part of Evolus' commitment to contribute to the community, which is why it has been made available under the GPL license, enabling users to access its source code for modifications and enhancements. Users can utilize Pencil either as an add-on for the Mozilla Firefox 3 browser or as an independent application. Additionally, Pencil is designed to be cross-platform, ensuring compatibility across any system that supports Mozilla Firefox 3, thus broadening its usability. This versatility makes it an invaluable resource for teams looking to streamline their interface design process.

Simitless allows you to build the information system that suits you without writing a single line of code. You will be able to work together on your database and information system and can easily configure what you need when it is needed. Start from one of our hundreds upon hundreds of templates and tweak it as you wish. You won't have to alter the way you work to fit a particular software. Optimize, Analyze, Grow.

Appsmith enables organizations to create custom internal applications quickly with minimal coding. The platform allows users to build applications by connecting data sources, APIs, and workflows through a user-friendly drag-and-drop interface. Appsmith's flexibility with JavaScript lets developers fully customize components, while the open-source architecture and enterprise security features ensure scalability and compliance. With self-hosting and cloud deployment options, businesses can choose the best setup for their needs, whether for simple dashboards or complex business applications. Appsmith offers a comprehensive solution for creating and deploying custom AI agents that can automate key business processes. Designed for sales, support, and people management teams, the platform allows companies to embed conversational agents into their systems. Appsmith's AI agents enhance operational efficiency by managing routine tasks, providing real-time insights, and boosting team productivity, all while leveraging secure data.

Transform your concept into reality swiftly with a versatile prototyping tool designed for everyone, from UX designers and entrepreneurs to product managers and marketers. You can effortlessly create your initial prototype without delay. Proto.io features a user-friendly drag-and-drop interface that provides all the essential components for your project! No prior experience is necessary. Explore a diverse array of user interface libraries packed with UI elements that not only resemble but also replicate the functionality of their native equivalents. With an extensive collection of ready-to-use and customizable templates for both web and mobile platforms, you'll find all the popular components at your fingertips. There's no need to hunt for additional assets; Proto.io offers a rich assortment of both static and animated icons, stock images, and even sound effects to enhance your prototypes. This comprehensive toolkit ensures that you have everything you need to bring your vision to life seamlessly.

Innovate, create prototypes, and collaborate to turn your concepts into reality. Revolutionize the process of designing Salesforce prototypes by focusing on every intricate detail. Tailor layouts for both the Salesforce desktop and mobile interfaces, ensuring a seamless user experience. Preview your prototypes, conduct tests, and validate each aspect thoroughly. Set rules for resizing, making it simple to adjust elements for various screen resolutions to suit both desktop and mobile formats. The layouts will automatically adjust along with their text and internal components to accommodate a diverse range of modern devices. You can effortlessly adapt a component's user interface for varying screen sizes by developing custom classes. Imagine the convenience of importing existing objects, fields, and layouts from your Salesforce directly into Avonni with minimal effort; this can be accomplished in just a few clicks, eliminating the need to build everything anew. Take advantage of over 400 pre-designed templates that are specifically crafted for Salesforce Lightning, including charts, related lists, modal boxes, and cards, among others. You can quickly personalize these templates with our intuitive drag-and-drop tool, making the design process even more efficient and user-friendly. Embrace a new era of prototype creation that simplifies your workflow and enhances productivity.

MockupTiger offers an array of widgets designed for swiftly crafting website wireframes, mobile templates, and dashboard visualizations. The dashboard charts seamlessly integrate data, allowing for the creation of realistic prototypes. This tool prioritizes a straightforward yet adaptable methodology, encouraging users to focus on conveying their concepts rather than struggling with the software. With MockupTiger, you can quickly showcase various screen design concepts and develop intricate mockups more efficiently than traditional methods like paper and pencil, making it significantly more advantageous. Whether you prefer low-fidelity wireframes or opt for high-fidelity designs complete with images and interactive links, MockupTiger caters to both needs. The Wireframe Tool is user-friendly and fosters collaboration between teams and clients, offering clean and sharp stencils suitable for a wide range of applications. Its extensive library includes Text widgets, Container widgets, Line Connectors, and Icons, ensuring a versatile design experience. Additionally, it features dashboard widgets that can accept data, enabling the creation of authentic chart mockups, thereby enhancing the overall prototyping process. Overall, MockupTiger stands out as a powerful tool for anyone looking to streamline their design workflow.

Accelerate innovation and shorten time to market by utilizing a comprehensive design-to-code platform. Indigo.Design serves as a robust digital product design solution that seamlessly combines UI prototyping, design systems, user testing, app development, and automatic code generation, thereby streamlining the design handoff process and minimizing expensive revisions — fostering genuine collaboration between UX design and development teams. Create and deploy complete business applications more rapidly than ever before with our cloud-based, WYSIWYG drag-and-drop interface. Experience dynamic interactions and observe your application's appearance through instant, real-time previews. There’s no need for downloads, cumbersome IDEs, or additional third-party dependencies. It integrates smoothly with widely-used design tools, allowing anything crafted in Sketch or similar platforms to produce pixel-perfect code output with just a click using the Indigo Design System. Instantly view your designs in the browser without any downloads or compile processes, and leverage our WYSIWYG cloud-based App Builder to generate clean, efficient code in Angular for a seamless development experience. This efficient approach not only saves time but also enhances the overall design quality, ensuring that your applications meet user needs effectively.

Save hours of time by comparing user research recordings to test results that instantly translate into metrics that matter. You can quickly create a maze to meet every project's needs, including surveys and usability tests. Then share it with users with a simple URL. You can see the test results in real-time and transform them into quantitative data like heatmaps and mis-clicks. In your auto-generated Maze Report, share your findings with stakeholders and start a conversation. Maze can be used to validate ideas, concepts, and test wireframes, usability, copy, and gather user insights through satisfaction surveys and feedback. Maze is browser-based, device-agnostic and intuitive. It integrates seamlessly with leading design platforms such as Figma, InVision and AdobeXD to speed up your testing.

Are you a designer, developer, product owner, or visionary looking to create a successful product? To achieve this, effective communication of your vision is essential from the outset. With Fluid UI, you can turn your ideas into prototypes in mere minutes and share them instantly, fostering collaboration and feedback seamlessly. By beginning with a free account, you can unleash your creativity and transform your concepts into tangible designs. Often, what you envision differs significantly from how others perceive it, which is why a well-crafted prototype can be invaluable in bridging that gap. Time constraints are real, and with so much to accomplish, Fluid UI emphasizes speed, simplicity, and enjoyment in the prototyping process. We believe this approach is key to successfully showcasing your ideas to the world. You can take advantage of an extensive collection of pre-designed UI Kits, including options for Material Design, iOS, and Wireframing. Additionally, our real-time collaboration feature enables your entire team to work concurrently on the same prototype, ensuring everyone is on the same page. By visually connecting your prototype, adding interactions becomes a quick, enjoyable, and efficient task, allowing you to bring your vision to life effortlessly. Ultimately, creating a prototype that resonates with your audience can significantly influence your product's success.

Transitioning from initial models to complete applications, harness the app creator to bring your concepts to life with remarkable precision. Utilizing an innovative, no-code app building method, you can develop bespoke applications through a distinctive spreadsheet that integrates seamlessly with a UI canvas. This exceptional design tool serves as the quintessential medium for your imaginative concepts. Take advantage of the prototyping tool features to craft your own applications, wireframes, mockups, prototypes, and no-code web apps. You can build comprehensive mobile and web applications using an unparalleled no-code development platform. The design and prototyping tools enable you to swiftly transform your ideas into reality. Utilize the spreadsheet to outline application logic while directly interfacing with internal and external data sources to devise your own apps. Say goodbye to Excel and Google Sheets; the MintData spreadsheet empowers you to create sophisticated prototypes and fully functional web applications. With a familiar spreadsheet interface paired with design tool capabilities, you can effortlessly realize your innovative visions. This platform not only simplifies the development process but also enhances collaboration and creativity throughout your project.

MockFrame by 500apps is a wireframe tool developed for creating mockups, prototypes, and user interfaces. This web-based software allows you to construct a website or an app without code. To gain comments on your work, you can share it with clients. Get 37+ apps with MockFrame at Just $14.99/month.

Experiment with our samples or upload your own visuals to effortlessly create eye-catching product mockups online. With the ability to generate professional mockups directly in your browser, even while on the move, you can say goodbye to the long hours of mastering Photoshop. Smartmockups allows you to produce impressive high-resolution mockups seamlessly across different devices and within a single interface. Take advantage of advanced features to maximize the impact of each mockup. You can upload images or videos from your computer, utilize third-party integrations, or simply capture a screenshot from any URL. Modify backgrounds, change colors of the product, or crop the entire scene to fit your vision. The options for customization are virtually limitless. Once you've perfected your mockup, export it in ultra-high 5K resolution in mere seconds without any restrictions. Share your creations on Instagram and increase your chances of being featured. Tailor each mockup professionally with unlimited export and sharing capabilities, along with various upload options available to you. Engage your audience by showcasing your unique designs effortlessly.

Mediamodifier simplifies the journey of digital marketing, allowing you to establish a polished brand presence with its remarkably user-friendly online tools. It offers a meticulously curated selection of mockups, expertly chosen by our dedicated content team. This platform serves as an exceptional marketing resource for both individuals and teams, regardless of size. Don't hesitate; begin crafting stunning visuals today. Mediamodifier is much more than just a graphic design tool; it's part of a growing ecosystem of applications and services that facilitate the effortless creation of visual marketing materials for various platforms, including social media and print. You can start with a design, quickly bring your concept to life, share it with colleagues or clients, and even streamline the process through an API. With fresh content added weekly and continuous enhancements driven by user input, you are not merely acquiring a design tool; you are gaining an entire support team dedicated to your success in visual marketing. This commitment to improvement ensures that as your needs evolve, Mediamodifier will adapt to support your goals.

Harness the potential of JavaScript to create dynamic and engaging prototypes that bring your designs to life. Prototyper offers a user-friendly starting point and gains complexity as you delve deeper into its features. This tool transforms the frame you've selected in the Figma canvas, generating images for each layer that are displayed as a preview on the right side of the plugin. Each layer functions as a variable, allowing you to reference them in the code editor located on the left side, facilitating the addition of animations and interactive elements. Each layer is organized in a hierarchy, with attributes that dictate their position, visual style, and interactivity. You can animate various states or properties of layers, such as scaling or color, utilizing a range of easing functions or spring curves, alongside options for timing and delays. Additionally, events are crucial for detecting user interactions, managing the onset or conclusion of animations, and tracking changes in values, enabling a fully responsive design experience. As you become more familiar with Prototyper, the possibilities for creating intricate and responsive animations are virtually limitless.

Claritee serves as a blueprint creator specifically designed for websites and applications. Users can effortlessly compile content using a drag-and-drop interface, allowing them to focus on the essential components without the distraction of design elements or font choices. You can incorporate interactive features like carousels, forms, and graphs to enhance user engagement. The platform also offers a preview option, enabling you to interact with clickable elements. At the beginning of your project, you can quickly experiment with multiple versions directly within your Claritee blueprint. This blueprint acts as a centralized hub where all critical design decisions are documented, serving as the definitive reference throughout the design and development journey. By utilizing blueprints, you can share previews with stakeholders or users, who can explore and navigate through the layout as if it were a live site. This collaborative approach allows team members to leverage their unique expertise, contributing to the design process from its inception and ensuring a well-rounded final product. Ultimately, Claritee empowers teams to streamline their design workflow and make informed decisions collectively.

HTML and CSS represent more than mere code; they serve as essential tools for design within your browser. When utilizing these technologies, you are not merely working on a flat surface, but instead engaging within the inherent structure of the web. Visualize the web as a series of interconnected boxes, allowing you to arrange and manipulate content with ease. With rnbw, your design efforts take place within this framework of the web. By operating within these parameters, you are not just adhering to a structure, but you are also embracing the core of web design itself. Rnbw is designed to be accessible for everyone, adaptable for any purpose, and versatile in its application. It stands apart from conventional software by prioritizing atomic concepts over standard features. While generic solutions may work for many, atomic concepts enhance their significance when they are combined in unique ways. By deconstructing intricate ideas into these fundamental elements, rnbw empowers users to create personalized solutions that cater specifically to their needs rather than conforming to a one-size-fits-all approach. This design philosophy is not just innovative; it is the cornerstone of developing more effective software for all users. Ultimately, rnbw is a celebration of creativity within the digital landscape.