Best Prototyping Software for Linux of 2025

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.

Omnis Studio is a cross-platform application development environment. Omnis Studio allows programmers and application developers to create application code once and then deploy their applications on almost any platform or device. This includes desktop PCs on Windows, macOS, and tablets as well as phones on iOS, Android, and Windows. Omnis JavaScript Client supports a wide range of client devices. This unique JavaScript-based technology renders the application UI and web pages in a standard web browser for desktops and mobile devices. Omnis Studio allows data and service integration via REST-based Web Services. The Omnis Studio API lets you extend the functionality of Omnis Studio with its powerful and flexible external components API. Omnis is headquartered at the UK, and has subsidiaries in USA and France. There are also distributors for many other parts.

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.

Storyboard is an embedded GUI framework that speeds up the design and delivery modern UX for tomorrow’s IoT devices and wearables. Iteration Technology and Rapid Design Import allow embedded developers to create products that provide unmatched GUI experiences (graphics and voice) and are optimized for all operating systems and platforms. Storyboard connects embedded developers with designers using popular tools such as Sketch and Photoshop. This allows manufacturers to achieve high-quality UX without compromising performance or development time. Storyboard allows developers to quickly visualize changes and quickly accept or reject elements. This workflow speeds up product development and allows teams to refine products at any stage of the cycle.

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.

Your design is not confined to a static internal data structure that requires an export to code; instead, we enable real-time code editing, facilitating easy file sharing between designers and developers. By leveraging the capabilities of the Web Platform, you can effortlessly create unique and responsive layouts without any limitations. Our grid tool stands out as the most intuitive and powerful grid system available. With our user-friendly GUI, coding is rendered unnecessary for the design process, yet you still generate code that you and your developer colleagues can adjust whenever needed. This collaborative environment opens up a world of possibilities for what you can create together. Every detail—colors, sizes, fonts, margins—will appear precisely as your users will experience it, eliminating the need for developers to second-guess the designer's vision. Ultimately, this seamless integration ensures that your projects are executed with clarity and precision, fostering a more efficient workflow for everyone involved.

Autodesk VRED is an advanced software solution for 3D visualization and virtual prototyping, crafted to animate intricate data effectively. It empowers users to produce exceptional renderings either locally or through the cloud, allowing for seamless visualization, design validation, and collaboration across various devices, including those equipped for virtual reality. With VRED, designers and engineers can easily develop product presentations, conduct design reviews, and construct virtual prototypes utilizing interactive GPU ray tracing alongside both analytic and cloud-rendering options. This software converts complex engineering and design datasets into a comprehensive digital control model, serving as a unified source of truth for all stakeholders. Users gain the ability to access the most current design data from anywhere, at any time, enabling high-quality collaborative reviews on desktops, mobile devices, or in a VR environment through an array of tools and streaming APIs. VRED not only facilitates data preparation and virtual prototyping but also enhances virtual photography, visual simulation, collaboration, and extended reality experiences, making it an essential tool for modern design workflows. Its versatility and robust feature set make it invaluable for teams looking to innovate and refine their product development processes.