Penpot
penpot.app
Open-source design and prototyping
ToolsOpen sourceWebSVG
by Kaleidos
Figma
Where most product design still happens
Live site
figma.com
Preview Figma inline
Loads the real site in a frame. Some sites block embedding — if it comes up blank, use Open instead.
What it is
Multiplayer design, variables, auto layout and Dev Mode. Worth listing because everything else in this category is defined relative to it.
Tags
collaborationindustry-standardhandoff
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tldraw.dev
Infinite canvas you can embed
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Excalidraw
excalidraw.com
Hand-drawn style diagrams
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