Sketch systems at the speed you think
Hand-drawn diagrams and cheat sheets you can type or describe. Write Client -> API -> DB, or ask the AI, and it's drawn and laid out. Six looks, from paper to blueprint to neon. Present as slides, embed in docs, export PNG, SVG or PDF. Free, no sign-up.
Diagramly launched on Product Hunt on 2026-10-14 and has 54 upvotes and 2 comments so far.
This tool is described as free to use.