Free Online WKT / WKB Viewer
Open and view WKT / WKB files directly in your browser. No upload, no install, 100% private.
How to open WKT / WKB online
Visualize Well-Known Text (WKT) and Well-Known Binary (WKB) geometry files. Paste WKT strings or upload .wkt and .wkb files.
Privacy
Files are processed on your device in the browser. GeoDataViewer does not upload your datasets to a server for viewing.
Common issues
If a dataset uses multiple required sidecar files, make sure you provide the complete set together. For best results, keep all sidecars in one zip archive when applicable.
Related tools
Measure distances, areas, elevation, and radius circles using the tools menu, then come back to inspect your WKT / WKB layer on the map.
Open WKT / WKB without QGIS or ArcGIS
You do not need QGIS, ArcGIS Pro, ArcMap, or any desktop GIS software to open and inspect WKT / WKB files. This page is a browser-based WKT / WKB viewer: it loads your file locally, renders the geometry and attributes on an interactive map, and never uploads your data to a server. If you just need to look at a dataset, check coordinates, or share what you see, you can skip the desktop GIS install entirely.
- ✓ No installation — open WKT / WKB directly in Chrome, Firefox, Edge, or Safari.
- ✓ No QGIS license, ArcGIS Pro subscription, or ArcMap setup required.
- ✓ Private by default — files are processed on your device, nothing is uploaded.
- ✓ Instant preview — drag a file in and see the map render in seconds.
- ✓ Good for one-off checks: a quick look at attributes, geometry, or extent before deciding whether to open the data in a full GIS.
If you later need advanced analysis, editing, or geoprocessing, you can still open the same WKT / WKB file in QGIS (free and open source), ArcGIS Pro, ArcMap, or Global Mapper — but for viewing and quick checks, this online WKT / WKB viewer is all you need.
WKT / WKB Viewer FAQ
How do I open a WKT / WKB file online?
Visualize Well-Known Text (WKT) and Well-Known Binary (WKB) geometry files. Use this page to open WKT / WKB data directly in your browser: Paste WKT strings or upload .wkt and .wkb files.
What files do I need to open WKT / WKB?
If your dataset includes multiple required files, make sure you upload all sidecar files together or use a single zip archive when supported.
Is this WKT / WKB viewer private?
The viewer runs locally in your browser. Your files are processed on your device rather than being uploaded to a server.
Can I open WKT / WKB without QGIS or ArcGIS?
Yes. This page is a free online WKT / WKB viewer that runs entirely in your browser — no QGIS installation, no ArcGIS license, and no plugins. Just add your WKT / WKB file and it is rendered locally on an interactive map.
Do I need ArcGIS to view WKT / WKB files?
No. ArcGIS is one option for working with WKT / WKB, but it is commercial software and overkill if you only need to view a file. GeoDataViewer opens WKT / WKB in your browser for free, with no account and no upload, so you can inspect the data before deciding whether a full GIS is worth it.
Can I open WKT / WKB without ArcGIS Pro or ArcMap?
Yes. ArcMap has been retired by Esri and ArcGIS Pro requires a paid subscription, but neither is needed to view WKT / WKB files. This browser-based WKT / WKB viewer opens your file locally for free — no ArcGIS Pro license, no ArcMap install, and no account required.
Is there a free WKT / WKB viewer with no installation?
Yes — this page. GeoDataViewer is a completely free WKT / WKB viewer that runs in your browser. There is nothing to install and nothing to download: open the page, add your WKT / WKB file, and inspect the map and attributes immediately.
Is GeoDataViewer a QGIS alternative?
For viewing, inspecting, and converting WKT / WKB files, yes — GeoDataViewer covers those needs entirely in the browser with zero setup. QGIS remains the better choice for deep analysis, geoprocessing, and large production workflows. The two complement each other: use this viewer for quick checks and QGIS when you need the full toolbox.