I built GridManager because I kept seeing the same problem everywhere people spending hours every week doing the exact same manual work in Excel: fixing column names, removing duplicates, cleaning messy formats, reordering data.
Not because they wanted to. Because they had no alternative.
I'm Federico, and I just shipped GridManager, a free Excel add-in that gives you a clean, professional sidebar to manage your spreadsheet data without ever touching a formula or navigating complex menus.
The problem I was solving: Excel is powerful, but managing data in it feels clunky. Adding rows means scrolling to the bottom, editing means finding the right cell, validating means writing formulas. It shouldn't be this hard.
GridManager is a free Excel add-in that gives you a powerful sidebar to add, edit, search, sort and validate spreadsheet data. No formulas, no complex menus — just a clean interface that works. Supports CSV import/export, duplicate detection, column reordering, undo/redo and per-column validation rules. Available in English, Italian, Spanish, French, German and Portuguese.
