LEGO Mosaic Maker

The maker converts an image into a two-dimensional color grid. The key groups cells by reference color, and the count for each color tells you how many mosaic positions currently use it. This gives you a visual plan for arranging one tile per cell.

It is a design reference, not a parts database or inventory checkout. It does not choose a particular brick shape, check current stock, calculate shipping, or produce a retailer shopping list. Confirm the part and color you intend to use before buying materials.

A mosaic is often viewed farther away than a screen preview, so a bold silhouette and clearly separated color areas matter. Close crops of a face, symbol, or object give more grid positions to the main subject. A busy landscape can devote many cells to background regions that contribute little to the recognizable shape.

Consider simplifying the image before loading it: remove small background objects, increase contrast, or use a flatter illustration. If fine details disappear in the grid, raise the width or accept a more abstract result rather than expecting every photographic nuance to survive.

Grid width sets the number of positions across the mosaic, while the height follows the source image proportions. Increasing the width gives details more cells, but also increases the total number of pieces. A smaller grid needs fewer positions and tends to emphasize the outline.

The tool does not define the physical size of the finished panel because that depends on the piece format and arrangement you choose. Use the grid dimensions as counts of positions, then calculate the finished size from the actual pieces and spacing in your build method.

The palette maps each cell to a nearby screen color. Screen RGB values are approximations of catalog colors; display calibration, ambient light, material, and production batches can affect how the physical pieces appear. A color that looks close in the preview may not match a part you already own.

The palette can include historical colors and may not represent the parts currently available in every region. Check a current parts catalog or your own collection before planning a large panel. If a color is unavailable, choose a substitute and edit those cells to keep the pattern consistent.

Each count is the number of grid cells assigned to a reference color. It assumes one tile for each position and does not add spares, replacement pieces, a frame, backing, or parts needed to secure the mosaic. It also does not distinguish all possible physical shapes that could fit a position.

Use the totals to compare color complexity and make an initial estimate. Before ordering, translate the reference colors to exact part IDs and add any extra materials your construction method requires. Recheck the counts after cell edits or palette changes.

Paint and Fill can make a region more consistent, while Pick lets you reuse an existing color. Erase a cell when the grid should contain an open position. These tools help refine a generated design, especially around a silhouette or boundary between two colors.

Review edits at the size the panel will be viewed. A change that improves a zoomed-in cell may create an awkward spot in the overall image. When the source itself is too detailed, use another crop or grid width rather than spending time correcting every small cell.

The PNG is convenient for sharing and zooming. The PDF adds a printable grid and color key, which can help you track rows and compare the number of pieces assigned to each color. Keep the preview and key together so a color name is not separated from its locations.

Check the print layout before you start: grid lines should remain visible and the key should be large enough to read. The export records the pattern reference, not an editable project. Download the version you want to preserve before leaving the page.