1.excalidraw / excalidrawVirtual whiteboard for sketching hand-drawn like diagramsproductivitycollaborationdiagramsdrawingwhiteboardcanvas+1 moreTypeScriptMIT135K total16K forks+6,551 starsfrom 128,563 · score 8.79
2.tldraw / tldrawBuild infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.drawingsketchwhiteboardcanvasdiagraminfinite+6 moreTypeScriptOther license51K total3.6K forks+1,785 starsfrom 49,439 · score 7.49
3.plait-board / drawnixTranslatedAll in one open-source whiteboard tool with mind, flowchart, freehand and etc. (SaaS)collaborationdrawingflowchartlocalfirstmindmapproductivity+2 moreTypeScriptMIT15K total1.3K forks+702 starsfrom 14,308 · score 6.56
4.flxzt / rnoteSketch and take handwritten notes.gtkgtk4rustgtk4-rsnotesnotes-app+7 moreRustGPL-3.012K total535 forks+367 starsfrom 11,471 · score 5.91