Pencil Project
Pencil is an open source user interface drafting tool that Evolus builds on Mozilla 's technologies . This tool helps analysts and application interface developers to quickly draw application interfaces to document communication with customers in the process of collecting requirements or as a basis for the team. application development. The Pencil tool building project is one of Evolus' efforts to give back to the community. It is for that reason that Pencil has been released as an open source tool (GPL license) so that anyone can have the opportunity to use and access its source code to adjust and upgrade. . Pencil can be deployed as an add-on to the Mozilla Firefox 3 browser or as a standalone application. Pencil is a cross-platform application and can work well on any platform that Mozilla Firefox 3 supports.
Learn more
Mockup
Mockup is a powerful UI/UX design app for iPhone, iPad, and Mac, built for ideation, wireframing, and prototyping. Sketch interfaces with Apple Pencil, create low-fidelity wireframes, organize flows, and preview interactive prototypes—all in one flexible canvas.
Design with 45+ device frames, customizable grids, shapes, text, images, SF Symbols, and reusable UI elements. Drag and drop assets, align and distribute objects, and create polished layouts quickly. Build interactive prototypes by connecting frames and previewing full user flows.
Mockup is optimized for Apple Pencil, including Hover and Apple Pencil Pro squeeze gestures, and supports multitasking, external keyboards, trackpads, SharePlay collaboration, iCloud sync, widgets, PDF/PNG export, and more.
Trusted by over 500,000 designers, developers, and teams worldwide to brainstorm, wireframe, and bring ideas to life faster.
Learn more
Pencil Spaces
Pencil Spaces is a cloud-based virtual classroom that combines video conferencing, collaborative whiteboards, file sharing, chat, and app integrations in one seamless platform. No downloads are required—users can join with a single click. Teachers can create unlimited boards, annotate documents, and organize content, with everything saved automatically. Built-in video and audio calling includes breakout rooms, screen sharing, and a calendar that syncs with Google to schedule sessions and track attendance. The platform features powerful AI tools, including a Learning Companion for real-time support, a Smart Assistant to manage classroom tasks, and an Autograder for instant feedback. Pencil Spaces also supports popular learning tools like Quizlet, Kahoot, and Google Classroom, and includes a built-in web browser for easy access to any site. It works on all major browsers and offers enterprise-level features like API access, analytics, and 24/7 support for schools and organizations.
Learn more
Pencil2D
Lightweight and easy to use so you can focus on animating and not what button to hit next. Seamlessly switch between raster and vector workflows, allowing you to sketch, ink & paint on the go. Pencil2D is completely open source and free to use, even commercially! We’re happy to share with all of you Pencil2D’s most recent release. This time our top priority was fixing the most immediate and pressing issues that not only broke the animation experience but also to patch previously implemented features. Over 330+ individual commits has been added since the last release, to stabilize and improve the software for continued use.
Learn more
