Convert KAP to ICO
Convert KAP to ICO online: the whole nautical chart raster decoded edge to edge, saved as a 256 × 256 ICO icon. Free, no sign-up.
Drop your KAP files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your KAP files
Drag and drop or select KAP files from your device. You can upload multiple files at once.
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Configure Output
Choose any available ICO output options, then start the conversion.
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Download ICO files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert KAP to ICO?
KAP is the BSB raster nautical chart format used by hydrographic offices and marine navigation software, holding a scanned chart image with its geographic calibration. The complete chart raster stored in the file is decoded by GDAL at its stored resolution, with its colour palette applied so the chart keeps its original colours.
ICO output is a 256 × 256 pixel Windows icon: the image is scaled to fit with its proportions kept, and the surrounding space is transparent.
Frequently Asked Questions
How do I convert KAP to ICO?
Drop your KAP file above and press Convert. Our servers read the chart with GDAL's BSB driver, expand its colour palette into a lossless PNG, then encode it in the format you chose. The result is saved as a 256 × 256 ICO icon, ready to download.
Which part of a KAP chart appears in the ICO?
The complete chart raster stored in the file, from edge to edge, at the resolution it was scanned at.
What reads the BSB data in a KAP file for the ICO?
GDAL's BSB driver, part of the open-source geospatial library used widely in mapping software. It reads the chart raster and its colour table, and the full-colour chart becomes the ICO.
Which part of the KAP becomes the ICO icon?
The whole image is used, fitted inside the 256 × 256 square with its proportions kept and a transparent surround.
What size is the ICO made from a KAP file?
The icon is 256 × 256 pixels, the largest standard Windows icon size. The image is fitted inside the square with its proportions kept and a transparent surround, stored as a PNG-compressed icon.
Is my .kap file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.