Free spreadsheet tools
Each one does a single job properly, with no account and nothing held back. They use the same reader as DataMimi, so they cope with the files people actually have.
Merge Excel files
Combine several spreadsheets into one, even when the columns do not match.
Clean a messy spreadsheet
Fix merged cells, headers buried in row 5, and numbers stored as text.
Excel to PowerPoint
Turn a spreadsheet into slides with charts, in one step.
Find duplicates in Excel
Spot repeated rows across sheets and files, with the originals kept.
Fix numbers stored as text
Turn $1,250.00, 12% and 03/15/2026 typed as text into real numbers and dates you can sum and sort.
Remove blank rows and columns
Delete every completely empty row and column in one step, and keep everything else exactly as it was.
Compare two Excel files
See which rows were added, which were removed, and which cells changed between two versions.
Summarize a spreadsheet
A profile of every column — types, blanks, totals, ranges, most common values — plus what in the data is worth a look.
Make a chart from a CSV or Excel file
Upload a file and get a clean chart back: a trend over time, a ranking by category, or a distribution.
Unpivot data: columns to rows
Turn a wide table with one column per month or product into a long table a pivot table can use.
Convert a bank statement PDF to Excel
One row per transaction, amounts as numbers, every page in one sheet.
Make a dashboard from your spreadsheet
Upload a file, see its headline figures, trend and top groups — free.
Convert CSV to Excel
Any CSV — any encoding, any delimiter — as a spreadsheet with real dates and numbers.
Convert Excel to CSV
A clean UTF-8 CSV from a workbook: header on row 1, no title rows, no totals.
Convert text to dates in Excel
Text dates and mixed formats turned into real dates you can sort and group.
Convert a PDF table to Excel
Tables from invoices, reports and statements as spreadsheet rows.
Free business calculators
Profit after Amazon, Shopify, eBay and Etsy fees, discount break-even, ROAS and LTV, loans, NPV and IRR, EOQ and A/B tests — computed in your browser.