10 free tools
Spreadsheet / Data
Repair, reshape, compare, and convert everyday data files.
Merge CSV Files
Combine multiple CSV files that share the same columns.
Split CSV Files
Break a large CSV into smaller files by row count.
Remove Duplicate Rows
Remove repeated rows using all columns or selected columns.
Compare Two CSVs
Find rows that were added, removed, or kept between two files.
Excel to CSV Cleaner
Convert an Excel sheet to clean CSV in your browser.
Column Mapper
Rename and reorder columns into a target schema.
CSV Formula Generator
Build spreadsheet formulas from a plain-English recipe.
Spreadsheet Error Finder
Scan CSV data for blanks, inconsistent widths, and suspicious values.
Delimiter Converter
Convert comma, tab, semicolon, or pipe-delimited data.
JSON ↔ CSV Converter
Convert arrays of JSON objects to CSV and CSV back to JSON.