Design Fuse Bead Patterns with Real Brand Color Codes

What you can do with Moss Beads

• Real brand color codes — switch between MARD, Perler, Hama and Artkal palettes, and convert a whole pattern from one brand to another ranked by CIEDE2000 color difference.

• Photo to pattern workbench — crop the framing, adjust brightness, contrast and saturation, cap the number of colors to something you can actually build, and compare the result with the original side by side.

• Bead stock and shopping list — tick the colors you already own, see how much of the pattern you can build today, exactly how many beads are missing and how many bags to buy.

• Print the pattern for real work — 1:1 real-size pages for 5 mm beads split automatically across A4/Letter with crop guides, a black & white symbol mode for mono printers, and a legend page.

Specs and limits

The real numbers this app runs on, taken from the implementation rather than rounded up for marketing. If a limit is listed here, it is one you will actually meet.

Palettes

Four real product palettes: MARD 291 colors, Perler 117, Artkal 176 and Hama 92, which is 676 in total, every one with the code you would order it by.

Cross-brand matching

Every color in a pattern matched to the closest code in another brand, ranked by CIEDE2000 color difference. Below 3 is hard to tell apart, and above 10 raises a warning before you convert.

Boards and canvas

8 x 8 to 64 x 64 beads. A standard pegboard is 29 x 29, which is 841 beads, so a 58 x 58 design means four boards and the largest canvas means nine.

Photo to pattern

6 quantization algorithms (block average, center pixel, dominant color, Bayer dither, clustered dot and Floyd-Steinberg) with cropping, brightness, contrast, saturation and a cap on how many colors the result may use.

Printing

1:1 real size. At 5 mm per bead, 37 x 50 beads fit on an A4 sheet, or 29 x 29 when each page is aligned to whole pegboards. A4 and Letter paper, with 3, 4 or 5 mm beads.

Printing in black and white

A symbol mode replaces colors with 28 distinct symbols, so a mono printer still produces a pattern you can follow.

Shopping list

Every color is counted, compared against the stock you entered and converted into bags of 500, with the gap shown color by color.

Assembly

Mark beads as placed one at a time or by dragging a rectangle over an area, with progress stored in the project.

Files in and out

Out: rendered PNG, pattern sheet PNG, print-ready pages, bead list CSV, shopping list CSV and project JSON. In: project JSON and images to convert.

Where it runs

Entirely in your browser, including the photos you import, which are never uploaded. The editor has a phone layout with pinch to zoom and a bottom drawer for the tools, colors and material list.

How a project actually goes

1. 1

   Pick a palette and a board

   Choose a brand palette, in which every code is a product code you can actually order, then pick a canvas from a single 29 x 29 pegboard up to a 64 x 64 piece that needs nine.

2. 2

   Draw it, or convert a photo

   Place beads one at a time, or bring in a photo and work the importer: crop to the part you want, adjust brightness and contrast, then cap the number of colors to something you can actually finish plating.

3. 3

   Check it against the beads you own

   Tick the colors in your stash and the pattern is quantized to those colors only, so what comes out is what you can build today. The material list then shows what is missing and how many bags that adds up to.

4. 4

   Print it and start placing

   Print at 1:1, lay a real pegboard on the paper and place beads against the printed codes, or keep a tablet beside you and drag over the pattern to tick beads off as they go down.

Traps worth knowing first

Every one of these comes from how the app really behaves rather than from a feature list. Knowing them saves a wasted afternoon.

• Buy by code, not by color. The hex values in the app are screen approximations of physical beads, so MARD A1, Perler P200 or Hama H98 is what gets you the bead you meant. The swatch on screen is a guide, not a specification.

• The color cap is the single most useful control in the importer. Quantizing a photo against a 291 color palette will happily return forty colors and a pattern nobody finishes, while capping at 15 to 25 keeps the picture recognizable and the shopping list short.

• Print at 100 percent scale. Browsers quietly shrink a page to fit the paper, and a page printed at 95 percent turns a 5 mm bead into 4.75 mm, which a real pegboard will not line up with. Print one test page and measure ten beads: they should span 50 mm.

• Page splitting can be aligned to whole pegboards, 29 x 29 beads per page, so a sheet matches the board you are working on and the edges tell you where one board ends. Turning that off fits 37 x 50 beads per sheet, which saves paper but leaves you counting.

Other MossGap tools

Three apps, one rule: everything runs in your browser, with no account and no upload.

• Moss PixelDescribe what you want and the AI agent paints it layer by layer — or edit every pixel by hand with a full multi-layer pixel editor.
• Moss MusicRoll the dice for a fresh seeded tune — five parts, drums included — in classical, jazz, lo-fi, electronic or 8-bit style, or chat with the AI agent to compose, tweak and play. Export MIDI, MusicXML, WAV and JSON.