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Convert GRIB to CSV — free and private
Drop a .grib2 file, choose a variable, and download it as CSV (lat, lon, value). No Python, no xarray, no upload — the conversion runs entirely in your browser.
Why convert GRIB to CSV here
The fastest path from a forecast file to a spreadsheet.
No Python required
Skip cfgrib, pygrib and xarray. No conda environment, no compiler — just drop the file and download CSV.
Stays on your machine
The file is decoded locally with WebAssembly and never uploaded, so confidential or unpublished data is safe.
Per-variable export
Select exactly the variable / level / time you need and export just that grid as lat,lon,value rows.
Ready for Excel & pandas
Plain CSV opens directly in Excel, Google Sheets, pandas or R — no extra tooling.
Frequently asked questions
Related tools & guides
Need a different format, or a full walkthrough?