1.excalidraw / excalidraw
Virtual whiteboard for sketching hand-drawn like diagrams
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16 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
Virtual whiteboard for sketching hand-drawn like diagrams
Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.
LibreCAD is a cross-platform 2D CAD program. It can read DXF/DWG, and write DXF/DWG/PDF/SVG files. It supports point/line/circle/ellipse/parabola/hyperbola/spline primitives. The GUI is highly customizable, and has dozens of translations.
开源白板工具(SaaS),一体化白板,包含思维导图、流程图、自由画等。All in one open-source whiteboard tool with mind, flowchart, freehand and etc.
Sketch and take handwritten notes.
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The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use.
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Convert images to vectorized line drawings for plotters.
The free and privacy respecting pictionary game - Play at https://scribblers.bios-marcel.link
Pencil2D is an easy, intuitive tool to make 2D hand-drawn animations. Pencil2D is open source and cross-platform.
An open source library that lets your users draw on things - mark up images with text, shapes, etc.
Enterprise-grade 2D graphics library for Go. Pure Go, zero CGO. Part of GoGPU ecosystem.