# CSV Cleaner & Deduplicator

Trim cells, remove duplicate records and reserialize quoted CSV.

[Open this tool](https://whatson.pk/developer-csv-clean-calculator/)

Category: Developer & Data

Cleaning a CSV needs record aware handling because commas and line breaks can belong inside quoted cells.

Choose the trim and duplicate rules, then review the reserialized dataset before replacing a source.

## Inputs and controls

* CSV input
* Input separator: Comma; Tab; Semicolon; Pipe
* Cell whitespace: Trim cell edges; Keep whitespace
* Duplicate rows: Keep first identical row; Keep every row
* CSV export values: Protect spreadsheet formula cells; Preserve raw machine values

## How to use

* Paste or enter CSV input.

* Choose input separator, cell whitespace, duplicate rows and CSV export values.

* Select Process input. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.


## Why use this tool

Matching rules stay explicit instead of treating every similar looking row as identical.


## Before relying on the result

It removes records under the selected row rules and cannot decide business identity.

## Questions

### Does it merge different customers with similar names?

No. It removes records under the selected row rules and cannot decide business identity.

### What should I check before using CSV Cleaner & Deduplicator?

Check CSV input, Input separator, Cell whitespace and Duplicate rows. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified (UTC): 2026-10-04T16:58:29+00:00

This profile describes the tool. It does not execute it or supply a professional certification.