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Minecraft Map Art Generator by Joshua Dobson
What it is
Minecraft Map Art Generator by Joshua Dobson is a free web tool that turns images into layouts for Minecraft map art. It matches image pixels to nearby available block colours using CIELAB colour matching. A single-map layout is 128×128, the standard size for one Minecraft map item; larger images can be split across 2×2, 3×3, or 4×4 map grids, with each segment downloadable as a separate 128×128 PNG.
Floyd-Steinberg dithering is available to improve colour accuracy in gradients and complex images. Exports include PNG, JSON, CSV, and .litematic files, while generated grids can be downloaded as ZIP files. The tool also calculates block counts and can export material lists as CSV or JSON. Image processing happens in the browser, and the maker says uploaded images are not sent to a server. The privacy policy says it uses no cookies, analytics, or tracking and passively collects no personal data. The maker cautions that height-based shading on Minecraft maps makes its colour matching a best-effort guide.
For and against
For
- Free to use in a browser
- Splits designs into grids up to 4×4 maps
- Exports PNG, JSON, CSV, and .litematic
- Provides block counts and material-list exports
- Image processing happens in the browser
Against
- Colour matching is only a best-effort guide
- Map shading depends on height
The verdict
The generator provides image-to-map layouts, multiple export formats, and material counts without a listed charge. Its colour matching is a guide rather than a guarantee because Minecraft maps apply height-based shading.
Who it suits
This tool suits Minecraft players who want to plan map art from an image and estimate the blocks needed. It may also help people preparing larger designs that span multiple maps.
Plans and prices
Free
Completely free to use
Read 7 Oct 2026 · joshuadobson.github.io
On the record
- Accuracy limitation
- The maker notes that Minecraft maps apply height-based shading, so the tool's colour matching is a best-effort guide.joshuadobson.github.io · read 7 Oct 2026
- Colour matching
- Uses CIELAB colour space matching for block colours.joshuadobson.github.io · read 7 Oct 2026
- Dithering
- Floyd-Steinberg dithering is available to improve colour accuracy in gradients and complex images.joshuadobson.github.io · read 7 Oct 2026
- Exports
- The page offers PNG, JSON, CSV, and .litematic downloads, plus ZIP download for generated grids.joshuadobson.github.io · read 7 Oct 2026
- Feedback data
- Voluntarily submitted feedback is processed by Web3Forms and may include a rating, message, feedback type, and optional email address.joshuadobson.github.io · read 7 Oct 2026
- Hosting
- The site is hosted on GitHub Pages, which may collect standard server access logs such as IP address, browser type, and pages visited.joshuadobson.github.io · read 7 Oct 2026
- Local processing
- Image processing happens in the browser, and the maker says uploaded images are not sent to a server.joshuadobson.github.io · read 7 Oct 2026
- Material planning
- The tool provides block counts and exports them as CSV or JSON to help plan materials.joshuadobson.github.io · read 7 Oct 2026
- Multi-map grids
- Can split a large image across 2×2, 3×3, or 4×4 map grids, with each segment downloadable as a separate 128×128 PNG.joshuadobson.github.io · read 7 Oct 2026
- Privacy
- The privacy policy says the tool uses no cookies, analytics, or tracking and collects no personal data passively.joshuadobson.github.io · read 7 Oct 2026
- Purpose
- Converts an image into a Minecraft map art layout by mapping pixels to the closest available block colour.joshuadobson.github.io · read 7 Oct 2026
- Single map output
- Supports 128×128 output, the standard size for one Minecraft map item.joshuadobson.github.io · read 7 Oct 2026
- Support
- The maker provides a feedback form and links to Ko-fi for support and contact.joshuadobson.github.io · read 7 Oct 2026
