CollabyDraw is queued for analysis. Crawling candidates and ranking them takes a few minutes. This page updates itself when the list exists — you can also come back later.
What is known so far comes from the other direction:
These projects were analysed and named CollabyDraw among their alternatives. The relationship is not symmetric — how CollabyDraw rates them is a separate judgement, made when CollabyDraw is analysed in its own right.
calls CollabyDraw “lightweight hand-drawn-style sketch whiteboard web app; take it if you only need loose diagrams without mind maps or plugin extensibility”
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.