1.excalidraw / excalidrawVirtual whiteboard for sketching hand-drawn like diagramsproductivitycollaborationdiagramsdrawingwhiteboardcanvas+1 moreTypeScriptMIT135K total16K forks+13,297 starsfrom 121,817 · score 9.50
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+4,660 starsfrom 46,564 · score 8.45
3.plait-board / drawnixTranslatedAll in one open-source whiteboard tool with mind, flowchart, freehand and etc. (SaaS)collaborationdrawingflowchartlocalfirstmindmapproductivity+2 moreTypeScriptMIT15K total1.3K forks+1,394 starsfrom 13,616 · score 7.24
4.flxzt / rnoteSketch and take handwritten notes.gtkgtk4rustgtk4-rsnotesnotes-app+7 moreRustGPL-3.012K total535 forks+726 starsfrom 11,112 · score 6.59