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NetCDF Viewer — Open .nc Files Online, Free and Private

A browser-based NetCDF viewer. Drop a .nc file and immediately see its variables, dimensions, attributes, and data — including hyperspectral cubes rendered band by band. Nothing is uploaded.

Open the NetCDF viewer
  • Reads NetCDF3 classic and NetCDF4 (HDF5-based) files
  • Variable table, global attributes, and metadata inspection
  • Band previews with percentile stretching and colormaps
  • NASA EMIT-style scenes: 285-band cubes open locally via streaming

Most NetCDF viewers are desktop tools (ncview, Panoply) or upload your data to a server. This one runs entirely in your browser with WebAssembly decoders, which makes it a quick way to inspect a scene, check a variable name before writing code, or look at a cube on a machine without a scientific Python stack.

decoded on your device, never uploaded

GIS Toolbox

Browser-based GIS tools — coordinate conversion, format conversion, measurement, and 3D map exploration. Files never leave your browser.

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Built with Vue 3, TypeScript & WebAssembly.