# Turn a napkin sketch into a clean, client-ready diagram

> Your coffee-shop scribble comes back looking like a consultant's slide.

Snap a photo of a rough sketch from a notebook, whiteboard or napkin, and get back a polished diagram with the same boxes, arrows and labels.

- Page: https://thesolocreators.com/prompts/napkin-sketch-to-clean-diagram/
- Category: Look like a pro
- Made for: Coaches, Consultants, Small business owners
- Works in: Gemini, ChatGPT
- Time: About 5 minutes
- Effort: Just copy and paste
- Needs a photo: yes, attach it before you send the prompt

## The prompt

Fill in the parts in [square brackets], or leave them and the AI will ask you for them.

```text
Use my uploaded sketch as the exact layout guide. Redraw it as a clean, professional diagram for a client presentation. Keep the same number of boxes, circles, and arrows, in the same positions, with the same connections. Replace my rough lines with crisp shapes on a white background, aligned to a neat grid with even spacing. Copy every handwritten label exactly as written, in a clear sans-serif font. Use [BRAND COLOR] for the main shapes and soft gray for the arrows. Don't add any boxes, words, or steps that aren't in my sketch. If a word is hard to read, use your best guess and keep it short. Title at the top: "[DIAGRAM TITLE]".
```

## Step by step

1. Photograph the sketch flat, in good light.
2. Upload it and paste the prompt.
3. Check that every label matches what you wrote.

## What you'll get

A crisp, grid-aligned version of your sketch with the same structure and labels, ready to drop into a slide or proposal.

## Good to know

**Which AI tools does this work in?** It works in Gemini and ChatGPT. On this page, one tap copies the prompt and opens the app, so you just paste. No paid plan is noted for this one.

**How long does it take?** About 5 minutes. It's rated "Just copy and paste". There are 3 steps, listed above.

**What do I need before I start?** One clear photo to attach first, then the prompt. The prompt also asks for: brand color and diagram title.

**What will I get back?** A crisp, grid-aligned version of your sketch with the same structure and labels, ready to drop into a slide or proposal.

Idea spotted on the web, shared by Abner Li (9to5Google): https://9to5google.com/2026/02/26/nano-banana-2-gemini-app/. The prompt is The Solo Creators' own version.

## Go further

Ready-made skills in the Solo Creators AI Studio (https://thesolocreators.com/studio/) that fit this: Slide Deck Designer (A blog post or an idea into a beautiful, on-brand deck. No Canva, no Gamma, no designer); Website Launch Builder (Plan, write, and build a launch-ready site, copy, design, legal pages, SEO and schema, without touching code).

From AI Use Cases and Prompts by The Solo Creators: https://thesolocreators.com/prompts/. Free to use; please link back to the page when you share it.