Convert ASCII Grid to PNG

Convert ASCII Grid (.asc) to PNG (.png) online for free. Fast, accurate geospatial format conversion with CRS reprojection.

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Upload your ASCII Grid file and get PNG output in seconds.

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About ASCII Grid

Arc/Info ASCII Grid is a simple text-based raster format. Each cell value is stored as a number in a plain text file with a header describing the grid dimensions and position.

Extensions: .asc

Software: ArcGIS, QGIS, GRASS GIS, GDAL, SAGA GIS

Limitations: Very large file sizes (plain text). Single band only. No built-in compression. Slow to read for large grids.

About PNG

Portable Network Graphics (PNG) is a lossless raster image format. When georeferenced (with a world file), it can serve as a lightweight map tile or overlay.

Extensions: .png

Software: Any image viewer, QGIS, Leaflet, OpenLayers, MapServer

Limitations: Limited to 4 bands (RGBA). No embedded CRS metadata (requires world file). Lossless compression may not reduce file size significantly.

How to Convert ASCII Grid to PNG

Upload your ASCII Grid file (.asc)
Review detected layers, features, and coordinate system
Select PNG as your output format
Choose a target coordinate reference system (optional)
Click Convert and download your PNG file

Frequently Asked Questions

How do I convert ASCII Grid to PNG?

Upload your ASCII Grid file to ConvertGeoData, review the detected data, select PNG as the output format, and click Convert. Your converted file will be ready to download in seconds.

Is the ASCII Grid to PNG conversion free?

Yes! ConvertGeoData offers free conversions for all users. No account required for basic conversions. Sign up for a Pro or Business plan for higher limits.

Can I change the coordinate system during conversion?

Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.

What software can open PNG files?

PNG files can be opened with Any image viewer, QGIS, Leaflet, OpenLayers and more.