Doing GIS Without QGIS — What Works, and When You Still Need It
QGIS is a genuinely excellent open-source GIS. But installing it, learning the coordinate system settings, and hunting down a plugin just to answer "how many acres is this parcel?" is a lot of overhead for a small question. This isn't a knock on QGIS — it's an honest, task-by-task comparison of what actually works in the browser, and where a desktop GIS like QGIS (or ArcGIS) is still the right tool.
Why QGIS feels heavy
QGIS itself is powerful and free. But being local desktop software brings some real friction: OS-specific installation and dependencies, a dense wall of menus and panels the first time you open it, a learning curve around understanding and setting coordinate systems and projections yourself, and hunting down and installing a plugin for each specific need (NDVI calculation, for example). For someone who works in GIS every day, that investment pays for itself. For someone who just needs to check one file, the barrier to entry is the whole problem.
What works in the browser vs. where QGIS is better
| Task | Browser (GISDirect) | Where QGIS is better |
|---|---|---|
| Check/convert coordinate system | Auto-detected on upload, converts instantly | Defining rare or legacy CRS manually |
| Area, distance, buffer calculations | Covered | - |
| Spatial clip, overlap detection | Covered | Datasets with tens of millions of features |
| Satellite/drone imagery analysis (NDVI, dNBR, etc.) | Covered (Landsat, etc.) | Custom multi-band modeling |
| Print-style map layout (title, north arrow, legend) | Covered | Survey-grade sheets requiring exact grid registration |
| PyQGIS scripting, custom plugin development | Not covered | QGIS |
| Multi-gigabyte DEM mosaics, very large rasters | Limited by browser memory | QGIS / a dedicated server |
What's actually covered
- Coordinate system auto-detection & conversion — upload a Shapefile, GeoJSON, or KML and it's detected automatically, convert to any target EPSG
- Area & perimeter calculation — accurate in m², hectares, or acres
- Buffer analysis — batch buffer zones around points, lines, or polygons
- Spatial clip — cut a layer down to a boundary polygon
- Geocoding — address to coordinates
- Terrain analysis — DEM slope and aspect
- Viewshed analysis — DEM- and building-based visibility
- Raster calculator — NDVI and other band math
- Wildfire severity (dNBR) and disturbance detection — Landsat based
- Print map layout — the map workspace's "Layout mode" lets you overlay a title, north arrow, scale bar, and legend directly on the live map and save it as an image
Where QGIS is still the better choice
To be straightforward about it: a desktop GIS is still the right call when you need to script repetitive workflows with PyQGIS, when a third-party plugin (a regional coordinate system pack, for instance) is a hard requirement, when you're working with a multi-gigabyte satellite mosaic or a nationwide raster dataset, or when you need to work fully offline. GISDirect's strength is "fast, with no install" — it isn't trying to replace everything a desktop GIS can do.
Frequently asked questions
Can GISDirect fully replace QGIS?
Everyday work — coordinate conversion, area/distance calculations, buffer and clip operations, satellite imagery analysis, and print-style map layouts — is fully covered in the browser. Specialized work like PyQGIS scripting, custom plugin development, or processing multi-gigabyte rasters is still better suited to a desktop GIS like QGIS.
Is it free?
Yes, the core analysis tools are free to use with no signup required.
Are uploaded files sent to a server?
No. All processing happens inside your browser and files are never sent to a server.