Clean, split, merge and convert CSV files, preview XLSX files and find fuzzy duplicate rows, without sending your data anywhere.
7 free tools. All run in your browser. See the full directory.
Spreadsheet 7 tools
- CSV cleanerTrim whitespace, fix encoding, and dedupe rows in a CSV.
- CSV SplitterSplit by rows, size or column value.
- Fuzzy Duplicate Row MatcherFind near-identical rows (e.g. "John Doe" vs "John Doee") that exact-match filters miss, using Levenshtein distance.
- Merge CSVsCombine multiple CSV files into one.
- SQL INSERT → CSV GeneratorTurn a raw SQL INSERT script into a clean, spreadsheet-ready CSV.
- vCard (.vcf) → CSV ConverterConvert vCard (.vcf) contact files to CSV, or a CSV back into vCards — both directions.
- XLSX viewerOpen and browse a spreadsheet without needing Excel.