Open Source Design Tools Apps
Discover the best open source design tools for creating graphics, UI prototypes & visuals. Empower your creativity with collaborative, customizable solutions.
Apps in Design Tools
Language
License
Formbricks
Analytics · Design Tools · Forms Surveys
Open-source experience management platform for in-app, website, email, and link surveys — privacy-first and fully self-hostable.
GDevelop
Design Tools · Developer Tools · Game Development
No-code, open-source game engine for building 2D, 3D and multiplayer games — publish to iOS, Android, Steam and the web.
Godot Engine
Design Tools · Developer Tools · Game Development
Free, MIT-licensed 2D and 3D game engine with one-click multi-platform export and no royalties.
Dify
AI Development · Design Tools · Developer Tools
Visual LLM workflow platform with RAG pipelines, agent capabilities, and model management for building production AI applications.
Penpot
Design Tools
Open-source design platform with GPU-accelerated canvas, native design tokens, and MCP-powered AI workflows for teams that ship fast.
SuperSplat
AI Design Tools · Design Tools
The free, browser-based 3D Gaussian Splat editor — inspect, edit, crop, optimize and publish splat scenes without installing anything.
Webstudio
Design Tools · No Code Platforms
Open source visual development platform with complete CSS control, headless CMS integration, and full infrastructure ownership
Cocos Engine
Design Tools · Developer Tools · Game Development
Open-source, cross-platform 2D/3D game engine with Vulkan, Metal, and WebGL support for web, mobile, and instant gaming platforms
drawio-desktop
Design Tools · Productivity
The offline-first diagram editor that puts security above all else — no account, no data leaving your machine, no compromises.
Silex
Design Tools · No Code Platforms
Free, open-source visual website builder that exports clean HTML/CSS — no lock-in, no subscription, host anywhere
GB Studio
Design Tools · Developer Tools · Game Development
Drag-and-drop retro Game Boy game creator that compiles real ROMs — no coding required.
Next AI Draw.io
AI Design Tools · Design Tools · Developer Tools
Turn natural language into professional draw.io diagrams with AI, cloud icons, and an MCP server for your IDE.
QCAD
Design Tools
Free, open-source 2D CAD application for Windows, macOS, and Linux with DXF/DWG support and JavaScript scripting.
open-design
Design Tools
Local-first, open-source Claude Design alternative that turns your existing coding agent CLI into a full agentic design studio — with 259+ skills, 142+ design systems, and sandboxed artifact delivery across web, desktop, and mobile surfaces.
Graphite
Code Editors · Design Tools
A free, open source procedural 2D design tool that unifies vector, raster, motion graphics, and generative art in a single node-based nondestructive workflow.
About Design Tools
Design tools are essential for anyone involved in creating visual elements, from simple graphics to complex user experiences. These applications provide a wide range of features for image manipulation, vector graphic creation, UI prototyping and wireframing. They often support collaborative workflows allowing teams to work together seamlessly on projects.
Typical features include layer-based editing, color management systems, typography controls, shape tools, and export options for various file formats. More advanced offerings include support for animation, 3D modeling, and real-time collaboration with commenting and version history. These tools frequently integrate with other development platforms, facilitating a smooth handoff from design to implementation.
Design tools solve critical problems in product development and marketing. They enable rapid prototyping of ideas, creation of consistent branding assets, and production of high-quality visuals for websites, mobile apps, and print media. Investing in open source design solutions offers greater control over your workflow, customization options to fit specific needs, and cost savings compared to proprietary alternatives. This category is valuable for designers of all skill levels, from hobbyists to professional teams.
