A little direction. A lot of possibility.

MOSS-Image JSON Layout Generator

MOSS-Image can follow a JSON layout of labelled bounding boxes. Draw the boxes here, edit the text, copy the JSON or send it straight to the generator.

Create a poster

Layout builder

Sketch the layout, get the JSON.

Draw boxes for headlines, labels and artwork. Edit their text and position, then send the JSON to the generator.

Layout canvas768 × 1024

Turn on Draw a box, then drag on the canvas. Select a box to edit it.

Scene description

Boxes

Exact text

Description

Position and size (pixels)XYWidthHeight

Layout JSON

{
  "summary": {
    "meta": [
      "poster"
    ],
    "canvas": "single",
    "caption": "Portrait exhibition poster, cream paper with black lettering and one moss-green circle."
  },
  "items": [
    {
      "label": "text",
      "caption": "Large black serif headline, centered, on two lines",
      "text": "TYPE\n& TEA",
      "bbox": [
        -379,
        -292,
        -102,
        292
      ]
    },
    {
      "label": "object",
      "caption": "A simple moss-green circle",
      "bbox": [
        -51,
        -123,
        195,
        123
      ]
    },
    {
      "label": "text",
      "caption": "Small black uppercase lettering, three separate lines",
      "text": "24 OCT 2026\nDOORS 18:30\nSTUDIO 08",
      "bbox": [
        266,
        -261,
        420,
        261
      ]
    }
  ],
  "bbox_coord_space": "abs_centralized",
  "bbox_format": "yxyx"
}

Layout prompting is experimental. Positions guide the model but are not guaranteed.

The studio

Describe it. Quote it. Place it.

Your images

Hand-authored TYPE & TEA exhibition poster concept

Hand-authored concept

Your image will appear here

Write a prompt, quote any text you need, and press Generate.

The prompt collection

Good images begin with good words.

Five briefs to borrow, change, and make your own. These hand-authored concept studies illustrate the prompts; they are not generated results.

Morning Club

Hand-authored concept

Square café menu, cream paper and black serif lettering. Heading: 'MORNING CLUB'. Two separate rows: 'ESPRESSO $3.50' and 'OAT LATTE $4.80'. Small coffee illustration below.

Illustrated bookstore window study with 花间书店, BLOOM BOOKS, and OPEN 10:00–20:00 signage. — Bloom Books
Hand-authored concept
Photograph of a bookstore window. Large Chinese lettering: '花间书店'. Directly below: 'BLOOM BOOKS'. Bottom line: 'OPEN 10:00–20:00'. Clear glass, warm interior, readable signage.

Hand-authored PAPER HOURS magazine cover with ISSUE 03, IDEAS WORTH KEEPING and a terracotta sculpture. — Paper Hours
Hand-authored concept
Editorial magazine cover, cream background, oversized black type. Masthead: 'PAPER HOURS'. Upper-right label: 'ISSUE 03'. Subtitle: 'IDEAS WORTH KEEPING'. Abstract terracotta sculpture beneath.

Hand-authored TYPE & TEA exhibition poster with a moss-green circle, 24 OCT 2026, DOORS 18:30, and STUDIO 08. — Type & Tea
Hand-authored concept
Portrait exhibition poster, cream and black with one moss-green circle. Headline: 'TYPE & TEA'. Separate lines below: '24 OCT 2026', 'DOORS 18:30', 'STUDIO 08'. Strong hierarchy.

Hand-authored WEEKEND EDIT bookshop sale poster with SAVE 25%, stacked books, and 24–25 OCT | IN STORE ONLY. — Weekend Edit
Hand-authored concept
Bookshop sale poster. Exact headline: 'WEEKEND EDIT'. Large offer: 'SAVE 25%'. Footer: '24–25 OCT | IN STORE ONLY'. Small illustrated stack of books, terracotta accent.

Render quoted text verbatim; preserve capitalization, punctuation and line breaks; add no other text.

Made for words and images

Your words are part of the design.

A menu needs its prices. A poster needs its date. Start with what matters, then describe the feeling around it.

Explore poster generation

Give every word a place.

Quote the headline, separate the details, and tell the model which line should lead. Always proofread the result before publishing.

Sketch the composition.

Place text and artwork in separate boxes, then turn your sketch into a layout prompt. Boxes guide the model; they do not guarantee exact placement.

Bring the whole brief.

Describe the paper, palette, hierarchy, subject, and spacing together. Keep each instruction consistent so the model has one clear design to follow.

Official user guide ↗

Room for your next idea

A plan for your creative pace.

Start with free credits. Add a monthly plan or a credit pack when you need more room.

Free starter

A few first drafts, on us.

3 image credits
Text-to-image generation
Visual JSON layout builder
Download your images
No credit card required

Creator

For everyday ideas

$12 / month

For a regular creative practice.

60 image credits
Text-to-image generation
Visual JSON layout builder
Download your images
Credits renew each billing month

Studio

$29 / month

More space to explore and iterate.

180 image credits
Text-to-image generation
Visual JSON layout builder
Download your images
Credits renew each billing month

1 credit per image. Failed generations are refunded. Prices in USD. Paid checkout opens when payments are configured.

A few useful answers

Before you create.

Can I create layouts without writing JSON?

Yes. Draw boxes on the canvas and fill in their text and description. The builder writes the JSON for you, and you can copy it for use elsewhere.

How do I position text and objects separately?

Give each element its own box. Text boxes hold the exact words to render, and object boxes describe the artwork that should sit in that area. The model treats each box as its own item.

What happens to bounding boxes when I change image dimensions?

The builder stores positions as fractions of the canvas, so boxes keep their relative placement when you switch aspect ratio. The exported JSON is recalculated in pixels for the new size.

Journal