Sites and apps similar to Modulz include Penpot, which is open source with a free version. Other options are Graphite, Figma, Pencil Project and Open Pencil. Vector Graphic Apps like Modulz are a crowded field, with more than 25 alternatives for Windows, Mac, Linux, iPad and iPhone.
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
Vector graphics and animation editor featuring free, open source access, nondestructive workflow, node-based generative design, layer compositing, browser use, and upcoming support for photo editing, painting, publishing, VFX, and desktop apps in alpha release.
United States
Figma is a web-based platform offering a robust set of tools for vector graphics editing and prototyping, along with offline desktop apps for seamless workflows. Designed specifically for UI and UX design, it emphasizes real-time collaboration, visual versioning, and vector networks to streamline the designer's work.
United States
Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Vietnam
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
Cross-platform vector editor for UI, UX, and web projects with native .sketch file editing, real-time multi-user collaboration, an AI-backed asset library, code and asset export, Figma integration, offline use, seamless cloud management, and auto layout tools.
United States
Vector-based Mac design app focused on UI, UX, web, and mobile with responsive artboards, prototyping, plugin support, real-time collaboration, reusable libraries, non-destructive editing, cloud feedback, and device preview via companion mobile app.
NetherlandsEU
A free vector and pixel design studio, right in your browser. Nothing to install, no account, and your work stays on your device.
GermanyEU
Online platform for creating interactive 3D web experiences including model sculpting, animation, material editing, physics, and game controls, offering real-time collaboration and export options for web-ready projects across modern operating systems.
United States
Enhances web design with bitmap and vector editing, specialized tools for rapid prototyping, hierarchical layers, smart guides, slices, symbols, and 9-slice scaling. Excellent image compression and format support, including JPEG, PNG, and GIF, ensures web optimization.
United States
Vector editor for browser with transforms, symbol management, boolean ops, freehand and Bezier paths, advanced shape tools, gradients, raster import/export, grouping, Google Fonts, customizable shortcuts, and HTML5 serialization for diverse designs.
PolandEU
Combines code-driven and visual editing workflows for interactive UI design, high-fidelity prototyping, real-time team collaboration, reusable components, inline commenting, mobile previews on Android/iOS, and smooth developer handoff for efficient workflow.
NetherlandsEU
