The visual layer for AI-built websites

Design on the page.
Let the AI write the code.

Prompting an AI to change your layout is a guessing game. Screenshots, paragraphs of notes, and it still moves the wrong element. Design Room flips it: you make the exact change by hand on your live site, and your AI coding tool ships it into the real codebase, right the first time.

Works with Astro, Node, PHP, plain HTML, or any live URL.

DD Design Room
← Projects
localhost:4321 Edit mode
DesktopTabletPhone
✏ Draw 3 edits Save for Claude
Build things
that move. h1.hero-title · 452 x 96

A studio for interfaces with motion, depth and a point of view. Selected on the canvas, edited on the right.

Start a projectSee the work
Inspector
sectiondivh1.hero-title
h1.hero-title
Hero.astro:14
This one onlyAll 3 matching
Type
64px
800
1.02
-2px
#5B8CFF
Spacing
24
0
0
0
Size
1160px
Save for Claude

The real editor: click any element, set the exact value, and every change is recorded as a precise spec for your AI.

The prompt tax

You think in pixels.
The AI wants paragraphs.

Every front-end person knows the loop. You see the fix in a second. Then you spend twenty minutes describing it, attach a screenshot, and the model nudges the wrong thing, breaks the spacing, or invents a component you never asked for. So you explain again. Each round costs time, and tokens.

YouMake the hero heading bigger and move the button under it, but only on mobile.
AISure. I updated the heading and the button.
YouNo, that changed desktop too, and the wrong button moved.
AIApologies. Could you share a screenshot and the file?
credits-82%
  • Words lose the detail. "A bit bigger" means something exact in your head and nothing exact to a model.
  • Screenshots are one-way. The AI can look, but it cannot see which element you mean or the value you want.
  • Every round costs. Ten "not like that" replies burn time and tokens to reach something you could set in one click.
  • It touches the wrong things. Vague intent turns into collateral edits you now have to catch and undo.
How it works

Three steps, no prompting required

01

Open your site

Point Design Room at a folder and it starts the right server, or paste a live URL. Your real site loads with the tools on top.

02

Design by hand

Click, drag, resize, recolor, swap images, draw notes, at desktop, tablet and phone sizes. Nothing touches your code.

03

Ship it

Hit save and your AI coding tool implements the exact spec in your real codebase. Review, deploy, done.

DD Design Room · Draw mode
← Projects
DesktopTabletPhone
✏ Draw Before / After 2 notes · 3 drawings Save for Claude
Pricing that
makes sense.

Three tiers, one honest promise. Annotate anything the sliders cannot say.

Choose a plan
1 Make this headline feel more premium, tighter tracking 2 Wrong photo here, swap for the studio shot

Draw arrows and boxes, pin notes, attach reference images. The intent a number field cannot capture, handed to your AI in plain sight.

The handoff

Your design becomes real code

Save the session and your AI reads the exact spec: which element, which property, the precise before and after, at which screen size. It writes it into the right files with proper responsive units.

Saved
northwind/.design-sessions/2026-08-13-hero-tune/session.json
Next, paste this in your AI coding tool:
Apply my design session "hero-tune"Copy
src/components/Hero.astro+ applied by AI
.hero-title {
-  font-size: 44px;
+  font-size: clamp(2.5rem, 5vw, 4rem);
-  margin-bottom: 12px;
+  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
 
@media (max-width: 480px) {
+  .hero-cta { flex-direction: column; }
}
The toolkit

A real design tool, wired to your AI

Everything a front-end person reaches for, recorded as a spec a coding model can implement without guessing.

Exact control

Set font size, spacing, containers and images to the precise number. No more "a little bigger."

Place anything

Drag elements anywhere, duplicate, reorder or delete. Every move is captured for the code.

Every screen size

Desktop, tablet and phone modes. Phone tweaks stay phone-only, so desktop is never touched.

Site-wide tokens

Recolor your entire brand from one picker. Change the system, not a hundred rules.

Draw and annotate

Arrows, boxes and notes right on the page, for the intent a slider cannot say.

Swap media

Drop in a new image or video from your computer and see it in place instantly.

Undo everything

Full history, a before and after toggle, and a screen eyedropper. It behaves like a design tool.

Nothing breaks

It is a preview overlay. Your real files are untouched until the AI applies your spec.

Works with your stack

Bring the site you already have

Point it at a project folder and it detects the type and starts the right server. Or paste a staging URL and edit the real thing, data and all. No lock-in, no rebuild.

DD Design Room

Pick a project, edit the live preview, save the changes for Claude.
+ Add projectScan a folder
Northwind
astro dev
Projects\northwind
Open
Vote For Design
php
Projects\votefordesign
Open
Brochure
html
Projects\brochure
Open
Client staging
live preview
http://96.30.31.151/
Open

Astro, Node, PHP, plain HTML, or any live URL. One picker, every site you build.

The payoff

One precise spec. One correct build.

1x

Fewer rounds

Replace ten "not like that" prompts with a single exact spec.

Lower token bills

Stop paying the model to guess. Pay it to implement.

Faster to live

Design and ship in the same afternoon, not across a week.

Exact intent

What you design is what gets built, down to the pixel.

Give your AI eyes

Design it. Don't describe it.

Design Room is how front-end people were meant to work with AI: by design, not by description. Get on the early access list and be first to build faster.

Get early access