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betaTables & Data
Duplicate Finder
Scan tables for duplicate rows, highlight potential duplicates, and export a cleaned dataset.
dedupedatacsv
Key features
- Duplicate detection rules
- Preview matches
- Clean export
Best for
- Data cleanup
- Import prep
- Table maintenance
Privacy
Runs locally. Files never leave your device.
How to use
- 1) Add your file(s) locally from your device.
- 2) Choose options (pages, OCR, columns, or settings).
- 3) Export the result (PDF/CSV/XLSX) — still locally.
FAQ
Can I choose matching rules?
Yes. Configure which columns are used to detect duplicates.
Will it delete rows automatically?
No. You review matches before exporting a clean file.
Does it work offline?
Yes. After load, everything is local.
Related guides
- How to Merge Multiple Statements into One CSV
Combine multiple statement exports into a single CSV while keeping dates, amounts, and descriptions consistent.
- How to Detect Duplicate Transactions in CSV
Identify duplicate transactions safely using stable keys like date + amount + description (with tolerances).