Duplicate invoices, invalid IBANs, repeated customer emails: Blockema finds them in your Excel or CSV in seconds, before they cost you money. Drop in a file and it suggests rules for every column. Add your own by dragging blocks (no formulas), including rules that compare rows or depend on another column. Jump to each error, fix it and download the corrected file with its formatting intact. Runs in your browser, so your file never leaves your computer. Same rules, same result, every time.

Still checking spreadsheets row by row? We've launched Blockema today! It finds and fixes the errors in your Excel and CSV files before they cost you money: duplicate invoices, invalid IBANs, repeated emails. No formulas, no code. What else it can do: - Suggests rules for every column as soon as you drop a file in - Lets you build your own rules by dragging blocks, even across columns - Takes you straight to each error and gives you back the fixed file, formatting intact - Runs in your browser, so your file never leaves your computer - Applies the same rules every month, so the same file always gives the same result Try it now with no sign-up. What file do you still check by hand? I'd love to hear it ❤️

Blockema

Find and fix spreadsheet errors without writing formulas

Find and fix spreadsheet errors without writing formulas