Spreadsheet cleanup workflows

Remove duplicates, trim spaces, split columns, find and replace, fill blank cells. Build a cleaning recipe and export the result. The file never leaves your browser.

Load two Excel or CSV files and find the rows that do not match: missing entries, extra entries and changed values. Both files are read in your browser.

Group near-duplicate rows — the same name written differently — and export one row per group. You confirm each group yourself.

Check a table against your own rules — required, unique, ranges, patterns, date order — and export the rows that fail. Nothing is uploaded.

Cross-tabulate your own table in the browser: pick rows, columns and a value, and the totals follow. Nothing is uploaded.

Upload an Excel or CSV file and get a finished chart. The file is read in your browser and never uploaded.

Turn a table into text you can paste: Markdown, HTML, TSV, SQL inserts, JSON, XML, YAML, LaTeX, INI, TOML, JSON Lines or an ASCII table. Nothing is uploaded.

Convert between XLSX, CSV, TSV and JSON, right in your browser.

Combine several .xlsx files into one workbook — every worksheet is carried over as it is, nothing is recalculated.

Turn each worksheet of a .xlsx into its own file and download them as a ZIP.