Open source Design & Prototyping tools
8 free, open source options sorted by GitHub stars.
Free alternatives to Adobe Illustrator, Figma
PenpotOpen-source UI design and prototyping for product teamsGraphiteProcedural vector editor that runs in your browser, no signup neededOpenPencilDesign editor that opens Figma files, runs AI, and stays localdraw.ioSecurity-first diagramming with no login requiredPlasmicVisual app builder that integrates with your existing codebaseInkscapeProfessional vector graphics editor for all skill levelsGridaOpen canvas for designing and building web appsQuant-UXDesign, prototype, and test user experiences with ease