Free Online GIS Viewer
& Format Converter
Analyze and convert your spatial data directly in your browser. No uploads, no servers, 100% secure. Supports 20+ formats including Shapefile, KML, GeoJSON, and AutoCAD.
100% Local & Secure
Your sensitive geospatial data never leaves your device. We use advanced WebAssembly technology to process everything right in your browser.
Universal Compatibility
Stop worrying about file formats. Drag and drop Shapefiles, KML, GeoJSON, GPX, DXF, DWG, and many more. We handle the conversion.
Professional Tools
Inspect attribute tables, filter data, style your maps, and export to modern formats like GeoJSON or FlatGeobuf with ease.
Supported File Formats
Click on a format to learn more about how to view and convert it online.
How It Works
View and convert GIS data in three simple steps — no installation, no upload, no account required.
Drag & Drop Your File
Simply drag your Shapefile, GeoJSON, KML, GPX, DXF, or any supported file into the browser. GeoDataViewer automatically detects the format and prepares it for viewing.
View on the Map
Your data renders instantly on an interactive map. Inspect attributes, filter features, change styles, and explore your dataset with professional-grade tools.
Convert & Export
Need a different format? Convert to GeoJSON, KML, Shapefile, GeoPackage, DXF, and more — all processed locally in your browser with no server upload.
Why Choose GeoDataViewer?
A quick-look tool designed for GIS professionals, data analysts, and developers who need to inspect spatial data fast.
No Upload Required
Unlike most online GIS tools, GeoDataViewer processes everything in your browser using WebAssembly. Your sensitive data never leaves your device.
No Installation Needed
No need to download heavy desktop software like QGIS or ArcGIS. Works on any modern browser — Windows, Mac, or Linux.
20+ Format Support
From classic Shapefile and KML to modern GeoParquet and FlatGeobuf. One tool covers almost every geospatial format you will encounter.
Completely Free
GeoDataViewer is free to use with no registration, no credit card, and no usage limits. Just open the site and start working.
Frequently Asked Questions
Is GeoDataViewer really free?
Yes. GeoDataViewer is completely free to use. There is no registration, no subscription, and no hidden fees. You can view and convert as many files as you want.
Do I need to upload my files to a server?
No. All processing happens locally in your browser using WebAssembly technology. Your files are never uploaded to any server, ensuring complete privacy.
What geospatial formats are supported?
GeoDataViewer supports 20+ formats including Shapefile, GeoJSON, KML, KMZ, GPX, DXF, DWG, GeoPackage, GeoParquet, FlatGeobuf, CSV, WKT, GML, and more.
Can I convert between formats?
Yes. GeoDataViewer supports bidirectional conversion between 19 format families with over 340 conversion paths, all powered by GDAL running locally in your browser.
Do I need to install any software?
No installation is required. GeoDataViewer runs entirely in your web browser. Just visit the website and start dragging files.
Is GeoDataViewer a replacement for QGIS or ArcGIS?
GeoDataViewer is designed as a quick-look tool, not a full desktop GIS replacement. It is perfect for inspecting, previewing, and converting files. For complex analysis and editing, QGIS and ArcGIS remain the industry standards.