Fast Deduplication Engine • Instant Cleaning
Remove Duplicate Rows in Excel Online
Clean customer lists, order databases, and email records. Upload your spreadsheet below and click "Deduplicate" in the toolbar to automatically purge duplicate rows.
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Drop XLSX, CSV, TSV, Markdown (.md), or JSON here
Runs locally inside browser memory. Multi-sheet workbooks open into tabs automatically.
1r × 1c used
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Zero Uploads
Combine Two or More Columns
Merge 2+ columns cleanly without writing formulas.
Preview
Split Column by Delimiter
Remove Duplicate Rows
Find & Replace
Sort Rows
Filter or Delete Matching Rows
Quick Cleanup:
Fill, Prefix / Suffix & Extract Column
Merge Multiple Files / VLOOKUP Join Sheets
Append rows from multiple files/tabs or join two sheets by a key column.
Option A: Stack / Append All Open Sheet Tabs
Option B: VLOOKUP / Left-Join Two Sheets by Key
Format Preview & Export Converter
Column Profiler & Quick Summary
| Col | Header | Filled | Blank | Unique | Dupes | Min / Max / Avg |
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Paste CSV, TSV, Markdown Table, JSON, or HTML
Confirm Action
How to Remove Duplicates in Desktop Excel
In desktop Excel: Select your table > Navigate to Data > Remove Duplicates > Select the columns you want to check > Click OK. Excel will report the number of duplicate values found and removed.
