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Image to CSS Grid Layout - Online Pixel‑Based Generator

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  Pixel Generator

Image to CSS Grid Layout

Upload any image and convert it into a pure CSS Grid pixel art layout

Upload Image
Drop image here or click to browse
PNG, JPG, GIF, WebP, SVG — Max 10MB
Settings
Columns 32
Pixel Size 10px
Gap 1px
Border Radius 0px
Pixel Art Mode (nearest-neighbor)
Show Grid Lines (preview only)
Stats
No image loaded

Upload an image to see the CSS Grid preview

Zoom: 100%
Generated HTML + CSS Grid
/* Upload an image to generate CSS Grid code */

Frequently Asked Questions

What is a CSS Grid pixel art generator?
This tool converts any raster image into a pixel art representation built entirely with CSS Grid Layout. Each pixel becomes a <div> grid cell with an inline background color — no canvas, no JavaScript rendering on the output side. The result is a pure HTML+CSS artifact you can embed anywhere.
How do I control the level of pixelation?
Adjust the Columns slider. Fewer columns produce larger, chunkier pixels (more pixelated). More columns preserve finer detail but increase the number of grid cells. Common values range from 16 (heavy pixelation) to 64 (detailed). The row count is automatically calculated from your image's aspect ratio.
What image formats are supported?
PNG, JPG, GIF, WebP, and SVG are all supported. PNG is recommended if your image contains transparency — the tool preserves alpha channels and renders them as transparent cells over a checkerboard background in the preview.
Why does my image URL fail to load?
This is likely a CORS (Cross-Origin Resource Sharing) issue. Browsers block canvas pixel reading from cross-origin images for security. Use same-origin URLs, or ensure the remote server sends the Access-Control-Allow-Origin header. Alternatively, download the image and upload it directly via drag-and-drop — that always works.
What does "Pixel Art Mode" do?
When enabled, the image is resampled using nearest-neighbor interpolation — this preserves hard edges and creates the crisp, blocky look of classic pixel art. When disabled, bilinear smoothing is applied, producing softer transitions between pixel blocks. Toggle it to see which style you prefer.
Can I use the generated code in production?
Yes. The output is standard HTML with inline CSS — no dependencies, no JavaScript. It works in all modern browsers. For very large grids (100+ columns), consider the DOM weight: a 64×64 grid creates 4,096 elements. For production use cases requiring thousands of pixels, a box-shadow or SVG-based approach may be more performant.
How do I handle transparency in the output?
Fully transparent pixels are output as background-color: transparent. Semi-transparent pixels use rgba() notation. The preview shows a checkerboard pattern behind transparent areas so you can see exactly what will render. To replace transparency with a solid color, edit the image before uploading.
What is the ideal pixel size for web use?
For icons and small decorative elements, 4–8px per cell works well. For hero images or larger displays, 10–20px creates a bold pixel art statement. The total grid width = columns × pixelSize + (columns−1) × gap. Keep this under ~800px for comfortable viewing on most screens.
Can I edit individual pixels after generation?
The generated code uses inline background-color on each grid cell. You can manually tweak any cell's color by editing its style attribute in the HTML. For more complex editing, consider using a dedicated pixel art editor and then re-importing the image here.
Is there a limit on image size or grid dimensions?
The tool handles images up to 10MB. The maximum grid is 128 columns (≈16,000+ cells for square images). Beyond that, DOM rendering may become sluggish. For reference, a 64×64 grid (4,096 cells) renders smoothly on all modern devices. The tool warns if the total cell count exceeds 12,000.
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