28 tools curated in this category — including OpenDesign, OpenPencil, DiffUI
techFind on mySelectas all sites and tools related to prototyping. This selection of 28 resources is reviewed and maintained by the community. The most popular include OpenDesign, OpenPencil, DiffUI. Each tool comes with a review, tags, comparisons and alternatives to help you make the best choice.
A free, open-source design app that lets your existing AI coding agent — Claude Code, Cursor, Codex and 20+ others — generate prototypes, websites, slides and dashboards directly on your own machine, using your own API keys instead of a locked-in design S
A free, open-source design tool where you describe what you want in plain English and a team of AI agents draws it for you on a Figma-like canvas — and exports the result as real code.
DiffUI is an AI tool that generates new UI designs matching your product's existing look, then turns those designs into real, responsive code.
Drop in a prototype, screenshot or PDF, send the link, and get feedback pinned to the exact spot on the page — no account needed for whoever's reviewing it.
A reference library of research-backed UX rules you can paste straight into Claude, Cursor, or V0 as a prompt — so the interface an AI generates for you follows real cognitive-science principles instead of just looking plausible.
A Figma toolkit that gives founders structured slide frames and guided prompts for a seed-stage pitch deck, instead of staring at a blank canvas or paying a designer for a first draft.
Upload one poster or print design and generate dozens of realistic product photos of it — framed on a wall, held in a hand, printed on a shirt — instead of paying for a photoshoot or a design mockup pack.
Describe a website or paste in a URL to redesign, and get back a screen that looks like a designer made deliberate choices — not the generic, samey layouts most AI website generators produce.
Design a product box's flat cutting pattern (a 'dieline') and see it rendered as a photorealistic 3D product photo in the same tool — instead of hiring a packaging designer for the technical file and a photographer for the mockup separately.
Turns a hand-drawn sketch, a screenshot of an app, or a text description into an editable UI mockup, so people without design training can still put together a real-looking prototype.
An AI-powered UI design software that helps non-designers quickly create wireframes and prototypes from text prompts, screenshots, or diagrams.
AI-powered design assistant that generates production-ready UI designs in seconds from conversational prompts. Transforms visual descriptions into editable, shippable interface designs.
Banani is an AI-powered UI design tool that generates editable UI prototypes and interactive designs from text prompts, images, and design briefs. Users can export to Figma, HTML/CSS, or images.
A web-based design tool where several people can sketch and refine app or website screens together in real time, built as a lighter, faster alternative to Figma.
A design canvas where an AI agent sits next to you and builds interfaces, graphics, and slide decks with you — and unlike most design tools, what you draw isn't a picture of an app, it IS the app: every design maps 1:1 to real React and Tailwind code, so
A free Google Labs tool where you describe an app screen out loud, by text, or by sketching on paper and photographing it, and it generates a real, editable interface design — plus the actual React and Tailwind code behind it — so a non-designer can get f
A browser extension that takes a snapshot of your actual live product — not a blank canvas — so a product manager can describe a change in plain English and see it applied to a real, clickable copy of the app, without waiting on a designer or developer to
Describe a hardware idea in one sentence and get back, in about two minutes, whether it's realistically buildable, what it would cost to manufacture, and a rough 3D concept — before you spend real money finding out the hard way.
An open-source visual editor that lets designers edit a real React website by clicking and dragging — like Figma, but the changes go straight into the actual code.
AI tool that turns chat prompts into working UI prototypes matching your existing design system, exportable to React and Figma.
