    I built this, so take it as self-promotion - but I use it every day at work and I tried to make it genuinely useful, not just another landing page.
    
    
    Diagraw (diagraw.com) is a free whiteboard for diagrams with a sketchy, hand-drawn look:
    
    Infinite canvas - boxes, databases, servers, actors, groups, arrows that stay attached when you move things, auto-layout when it gets messy
    
    Real-time collaboration - share a link and others join your canvas instantly, with live cursors and presence. Only the session owner can stop it
    
    Lyra (AI assistant) - describe your system in plain words ("a login flow with OAuth and a user DB") and it draws the diagram. Then you refine it by chatting: "add a Redis cache", "group these services". It also understands your manual edits
    
    Import / export - import from Mermaid, docker-compose or Miro; export to PNG, SVG or PDF (always with a clean white background)
    
    No account required for any of it. Your diagrams stay in your browser unless you sign up to save them. No ads. Works in English and Spanish.
    
    The AI has a free limit of 5 generations per person every 3 hours - it costs me real money, sorry 😅 Everything else is unlimited.
    
    Would genuinely appreciate feedback - especially if something feels confusing, or if a diagram comes out ugly (the auto-layout is my never-ending battle).
    
    
    diagraw.com

I built a free online whiteboard with a hand-drawn style - real-time collaboration, AI that draws diagrams from text, no account needed