Remove Duplicates from CSV Online

Remove duplicate rows from CSV files in seconds. Find exact duplicates or remove duplicate records using a specific column such as email, phone number, customer ID or any other field.

✓ 100% Free ✓ No Sign-Up ✓ Browser-Based ✓ No Software Installation

Remove CSV Duplicates

Select a CSV file and choose how CSVora should identify duplicate records.

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Choose a CSV File or drag and drop your file here

How should duplicates be detected?

Exact Duplicate Rows Remove rows where every value is identical.

Duplicates in a Specific Column Remove records with duplicate values in a column such as Email, Phone or Customer ID.

Choose the column used to detect duplicates:

0 Original Rows

0 Duplicates Removed

0 Clean Rows

Clean CSV Preview

Remove Duplicate Rows from CSV Files

Duplicate records can make CSV data inaccurate, difficult to manage and harder to analyze. The CSVora duplicate remover helps you remove duplicates from CSV files directly in your browser.

You can remove completely identical rows or identify duplicates using a specific column. This is useful when a file contains repeated email addresses, phone numbers, customer IDs, order numbers or other unique values.

Remove Duplicates Using a Specific Column

Not every duplicate record contains identical data. Two rows may contain the same email address while other fields are different. CSVora lets you select a column and keep the first record found for each unique value. Later duplicate records using the same value are removed.

How to Remove Duplicates from a CSV

Select your CSV file, choose whether you want to detect exact duplicate rows or duplicates in a specific column, and click Remove Duplicates. Review the cleaned data and download the new CSV file.

Exact Row Detection Find rows containing the same values.

Column-Based Detection Find duplicates using a selected field.

CSV Preview Review the cleaned data before downloading.

Automatic Delimiter Detection Supports common CSV delimiters.

Local Processing Your CSV is processed directly in your browser.

Instant Download Download your cleaned CSV when processing is complete.

Frequently Asked Questions

How do I remove duplicates from a CSV file?

Choose your CSV file, select how duplicates should be detected, click Remove Duplicates and download the cleaned CSV.

Can I remove duplicates based on email addresses?

Yes. Choose the column-based option and select the column containing email addresses.

Which duplicate record is kept?

CSVora keeps the first occurrence and removes later records that match the selected duplicate rule.

Is this CSV duplicate remover free?

Yes. The CSVora CSV duplicate remover is free to use and does not require account registration.

Are my CSV files uploaded?

No. This tool processes your CSV file locally inside your browser.