🔒 Your file is processed entirely in your browser — it never leaves your device.
For NetCDF4/HDF5 files, use the HDF5 viewer.
Open NetCDF files right in your browser
Drag a .nc file below to explore its dimensions and variables, slice across time or level, preview the grid as a heatmap, and export to CSV, JSON or GeoJSON. Everything runs locally — no upload, no install, no Python or xarray.
Why GribBox
A NetCDF viewer built for privacy, speed and zero setup.
100% local processing
Your .nc file is decoded inside your browser and never touches a server — safe for unpublished research, climate runs and confidential model output.
No install, no Python
No Panoply, no ncdump, no netCDF4 / xarray environment. Just open the page and drop your file.
Built for multi-dimensional data
Browse CF-convention variables, pin time / level / ensemble dimensions, and read any 2-D slice with a heatmap preview.
Export anywhere
Turn any slice into CSV, JSON or GeoJSON for Excel, pandas, QGIS or your own pipeline.
Frequently asked questions
Related tools & guides
Already exploring your file? Convert it, or learn more.