CSV DEDUPLICATE · DISTINCT
Remove Duplicate Rows from a CSV
Detect duplicates using all columns or selected columns and keep the first matching row. Your CSV never leaves your browser.
CSV processing stays in your browser
Your files are not uploaded to a server.
File selection
Choose 1 CSV file up to 50 MiB. Its name and contents are never sent outside your browser.
Drag and drop a CSV file here
1 CSV file, up to 50 MiB
How it works
Keep one row for each email address
How it works
Keep one row for each email address
Compare email addresses and keep only the first matching row.
Input example
| Name | |
|---|---|
| [email protected] | Alice Smith |
| [email protected] | Alice Smith (updated) |
Output example
| Name | |
|---|---|
| [email protected] | Alice Smith |
Equivalent to DISTINCT. The number of excluded duplicate rows is also shown.