Can I deduplicate based on specific columns?

Yes, you can specify one or more column names to target for deduplication, such as email or phone.

What is the 'most complete record' strategy?

This strategy evaluates duplicate rows and retains the row containing the fewest empty or null values.

How does fuzzy matching work?

Fuzzy matching identifies duplicates with minor spelling differences or typos based on a similarity threshold you set from 0 to 100.

Does the tool modify my original file?

No, the tool processes your data locally or securely in-memory and outputs a new, cleaned CSV file for download.

Can I preserve the original row order?

Yes, checking the 'Preserve Original Order' option ensures the output rows remain in their original sequence.

Elysia Tools

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Data Processing

CSV Deduplicate Rows

Upload a CSV file or paste CSV text, remove duplicate rows using exact or fuzzy matching, and download a cleaned CSV.

Details

What this tool helps you do

Useful for CRM exports, lead lists, survey data, and spreadsheet cleanup when you need row-level deduplication with a downloadable result.

Execution

Run this tool

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Prepared example runs

Click an example to fill the form automatically. File inputs still need an upload.

2 examples

Clean a CRM export before outreach

Paste a customer export, deduplicate by email and phone, and download a cleaned CSV for your sales or lifecycle campaign.

{
  "type": "file",
  "fileName": "crm-clean-list-deduplicated.csv",
  "contentType": "text/csv"
}

Merge survey responses with fuzzy name matching

Upload a CSV, enable fuzzy matching, and keep the most complete record when respondents appear with small spelling differences.

{
  "type": "file",
  "fileName": "survey-responses-deduplicated.csv",
  "contentType": "text/csv"
}

Inputs

Options are grouped so long tools stay easier to scan.

10 options

FilesUpload source files for this workflow.1

CSV FilefileOptional

Single file max size: 50 MBSupported types: text/csv, text/plain, .csv

Upload a CSV file if you prefer not to paste data

ContentPaste or type the main input values.3

Paste CSV DatatextareaOptionalPaste CSV content here when working from copied dataDeduplication ColumnstextareaOptionalOutput File NametextOptional

SettingsAdjust formats, ranges, numbers, and modes.2

Deduplication StrategyselectOptionalFuzzy Match Threshold (0-100)rangeOptional

0100

TogglesEnable or disable optional behavior.4

Enable Fuzzy MatchingcheckboxOptionalEnabled when checkedCase Sensitive MatchingcheckboxOptionalEnabled when checkedTrim WhitespacecheckboxOptionalEnabled when checkedPreserve Original OrdercheckboxOptionalEnabled when checked

Result

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Samples

CSV Deduplicate Rows

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Key facts

Overview

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How it works

Use cases

Examples

1. Clean a CRM export before outreach

2. Merge survey responses with fuzzy name matching

FAQ

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