Excalidraw
Virtual whiteboard for sketching hand-drawn-style diagrams.
FreeWireframing
Overview
Octopus.do plans site structure with visual sitemaps and content blocks.
Pricing
Free
$0
Core features with usage limits.
Paid plans
From a monthly fee
Higher limits, advanced features and team options.
Plans and prices change often — check the official website for current pricing.
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Whimsical
Flowcharts, wireframes, mind maps and docs in one fast workspace.
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