Free Online CSV / Excel Viewer
Open and view CSV / Excel files directly in your browser. No upload, no install, 100% private.
How to open CSV / Excel online
Map CSV files with Latitude/Longitude columns. Ensure your CSV has columns named lat/lon, latitude/longitude, or similar.
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 CSV / Excel layer on the map.
What is CSV / Excel?
CSV is a plain text table format that becomes geospatial only when rows include coordinates, WKT, or some other geometry-bearing columns.
What is CSV / Excel used for?
- Sharing tabular records with coordinates between GIS teams and spreadsheet-heavy business users.
- Feeding ETL jobs, reporting tools, and import pipelines that expect flat text tables.
- Exporting data for manual review, annotation, or lightweight downstream processing.
Common use cases
- Address lists, asset inventories, or sensor records with latitude and longitude columns.
- QA exports where analysts need to sort and filter records outside a GIS application.
- Quick imports into scripts, databases, cloud notebooks, or low-code data tools.
Strengths
- Very easy to open, inspect, diff, and load into general-purpose tooling.
- Lightweight file structure works well for automated pipelines.
- Good bridge format when the audience is not primarily using GIS software.
Limitations
- CSV has no native geometry model, so location must be inferred from columns or embedded text.
- CRS, styling, topology, and richer feature metadata are not standardized in plain CSV.
- Multi-geometry or multi-layer datasets are better stored in dedicated geospatial containers.
File extensions and sidecar files
Convert CSV online
Open CSV / Excel without QGIS or ArcGIS
You do not need QGIS, ArcGIS Pro, ArcMap, or any desktop GIS software to open and inspect CSV / Excel files. This page is a browser-based CSV / Excel 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 CSV / Excel 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 CSV / Excel file in QGIS (free and open source), ArcGIS Pro, ArcMap, or Global Mapper — but for viewing and quick checks, this online CSV / Excel viewer is all you need.
CSV / Excel Viewer FAQ
Is CSV a real GIS format?
It is a tabular data format first. It becomes useful in GIS only when the file includes coordinates or geometry text that a spatial tool can interpret.
When should I keep data in CSV?
Keep it in CSV when the main task is tabular review, reporting, or lightweight import into general-purpose tools rather than spatial analysis.
Why convert CSV to GeoJSON or GeoPackage?
Those formats make geometry explicit, preserve spatial context better, and are easier to preview on a map without guessing which columns represent location.
Can I open CSV / Excel without QGIS or ArcGIS?
Yes. This page is a free online CSV / Excel viewer that runs entirely in your browser — no QGIS installation, no ArcGIS license, and no plugins. Just add your CSV / Excel file and it is rendered locally on an interactive map.
Do I need ArcGIS to view CSV / Excel files?
No. ArcGIS is one option for working with CSV / Excel, but it is commercial software and overkill if you only need to view a file. GeoDataViewer opens CSV / Excel 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 CSV / Excel 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 CSV / Excel files. This browser-based CSV / Excel viewer opens your file locally for free — no ArcGIS Pro license, no ArcMap install, and no account required.
Is there a free CSV / Excel viewer with no installation?
Yes — this page. GeoDataViewer is a completely free CSV / Excel viewer that runs in your browser. There is nothing to install and nothing to download: open the page, add your CSV / Excel file, and inspect the map and attributes immediately.
Is GeoDataViewer a QGIS alternative?
For viewing, inspecting, and converting CSV / Excel 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.