Battle Map Grid Overlay
Choose an image, set grid dimensions, preview the overlay, and download a PNG locally.
Choose an image to preview a grid overlay.
Download PNGProcessed locally. Images are limited to 10 MB and 4,000,000 pixels.
A QUICK WALKTHROUGH
How to use this tool
- Choose a map image within the file and pixel limits.
- Set the number of rows and columns, and adjust pixel spacing if needed.
- Draw the grid over the image and download the resulting PNG.
Local canvas processing
The selected image is processed with the browser Canvas API. No image is uploaded.
Limits
Images are limited to 10 MB and 4,000,000 pixels. Grid rows and columns are each limited to 100.
GOOD TO KNOW
Common questions
Is the image uploaded?
No. It stays in your browser.
Can I change the grid?
Yes. Set rows, columns, and optional pixel spacing before drawing.
What is exported?
A PNG containing the original image with the visible grid overlay.