vs. paid visual tools
Subscription dashboards lock features behind tiers. We give you every visualization type, every palette, and every style control for free — because the output is just a prompt, not a hosted render.
Our mission
Great visuals shouldn't be locked behind a paywall.
VisualCraft is a free, open tool that turns a half-formed idea into a precise, copy-paste prompt — so any AI you already use can draw it for you.
Why we built this
The best AI tools can generate beautiful diagrams, charts, and mindmaps. The catch is knowing exactly what to ask for. A vague prompt gets you a vague picture.
So we did the hard part once: dozens of visualization types, each with a carefully engineered prompt template, plus palettes and style controls. You pick what you want in four steps; we hand you a prompt that actually works. You paste it into whichever AI you like best.
You bring the idea. We sweat the wording.
No account. No credit card. No "free trial" that expires. It's free because it costs us almost nothing to run — and that's the whole point.
The honest version
How VisualCraft is different
We're not trying to be your image generator. We're the step before it — the part that makes the generator give you something good.
vs. writing prompts yourself
Our templates are 150–200 words of tuned instructions per type, with named colors and layout guidance baked in. Hard to match from a blank text box in thirty seconds.
vs. learning a design app
No canvas, no layers, no learning curve. Four taps and a paste. The AI you already pay for (or use free) does the drawing.
There's no AI on our servers. There are no servers.
VisualCraft is a static website. Everything you do happens inside your own browser. We don't run AI, we don't see your content, and we don't have a database to leak.
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Your text never leaves your device. The prompt is assembled locally and saved only to your browser's localStorage.
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No login, no account, no email. Nothing to sign up for and nothing for us to store.
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The actual image is made elsewhere. You paste our prompt into whatever AI tool you choose. That step happens in their app, under their terms — not ours.
Good questions
Frequently asked
Yes, completely. Illustrate Words is a static website that runs entirely in your browser - there are no subscriptions, no usage limits, no premium features hidden behind a paywall. The entire tool is free forever. We don't even ask for your email.
No account is required. Illustrate Words saves your selections locally in your browser using localStorage. Nothing is stored on a server, no login is needed, and no personal data is collected.
Any AI tool that accepts text prompts and produces visual or text output will work. We've tested with Google Gemini, ChatGPT (especially GPT-4 with image generation), Claude (for diagram code), and Midjourney. For image-style outputs, Midjourney and DALL-E work best. For diagram code (SVG, Mermaid, etc.), Claude and Gemini work best.
Napkin AI is a complete generative tool that creates visualizations directly. Illustrate Words is a prompt generator - it produces detailed prompts you take to any AI tool of your choice. This means you're never locked into one platform, you can use cutting-edge models as they release, and the tool is free forever. You trade a small extra step (paste the prompt into another AI) for unlimited flexibility.
Absolutely. Use Illustrate Words for client work, business presentations, marketing materials, or anything else. The prompts are yours to use however you like. Note that any output you generate from external AI tools (Gemini, ChatGPT, etc.) is subject to those tools' own terms of service.
First, provide rich, specific content in the 'Your content' field - the more concrete your data, the better the visualization. Second, try multiple AI tools - different models produce different aesthetic results. Third, iterate - if the first generation isn't perfect, add follow-up prompts like 'make it more minimalist' or 'use a darker color scheme'. Fourth, consider using Claude or Gemini to generate SVG/Mermaid code that you can then edit precisely.
Yes, the source code is freely available on GitHub. You can fork it, modify it, host your own version, or contribute improvements back to the main project.
The 13 categories cover the complete taxonomy of visualizations offered by Napkin AI, which represents the most comprehensive commercial set we found. Within each category, we've included the most useful and commonly-needed sub-types - 76 in total. If a visualization type you need is missing, let us know and we'll add it.