The best open source alternative to Pencil Project is Penpot. If that doesn't suit you, our users have ranked more than 50 alternatives to Pencil Project and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Pencil Project are LibreOffice - Draw, Open Pencil, Penpot Desktop and Wireflow.
Open-source design platform offering web-based and self-hosted workflows, code inspection in HTML and CSS, adaptive layouts with CSS Grid and Flex, real-time collaboration, auto layout features, reusable components, design tokens, layer support, plugins, and no tracking.
Spain
EU
Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.
GermanyEU
Open-source design editor for vector and interface projects featuring AI-powered generation, .fig and .pen file support, design-to-code export, real-time P2P collaboration, linting, tokens, advanced programmability, Vue SDK, and privacy-friendly operation.
Russia
Penpot Desktop is an unofficial desktop application for the open-source design tool, Penpot.
Feature-rich, open-source Wireflow offers a collaborative platform for online creation of complex user flow prototypes. Ideal for team work in UI design, wireframing, and mind mapping, promoting idea sharing in real-time environment aided by modern whiteboard features.
Akira is a native Linux Design application built in Vala and GTK. Akira focuses on offering a modern and fast approach to UI and UX Design, mainly targeting web designers and graphic designers. The main goal is to offer a valid and professional solution for designers who want to...
ItalyEU
Draw, part of the Apache OpenOffice suite, is a graphics editor that gives you the tools to communicate with visuals and diagrams. With a maximum page size of 300cm by 300cm, Draw is powerful tool for posters, graphs, charts, and more.
United States
Core2D is a multi-platform application for making data driven 2D diagrams. The application has built-in wyswig vector graphics editor where you can bind data to shapes, share data across multiple documents, edit documents using layers.
PolandEU
Alva works with your production frontend components, adding up-to-date, responsive, and interactive designs to your living styleguide.
GermanyEU
Open source wireframing tool written in typescript, react and redux.
GermanyEU
Online tool for creating mockups in the browser. Use your browser’s save function to save the file (just html for view only, complete save for an editable version) or export to codepen for others to view.
Diagramo is an online flowchart software
United States
