Free Tool · Admin & Data

Free Student Information Duplicate Finder

Paste your student roster CSV and instantly identify duplicate records by name, email, phone, or student ID — before importing into your SIS.

Runs entirely in your browser · No login · No data uploaded

Student Data (CSV)

Paste CSV with a header row. Columns can be in any order.

Example: Name, Email, Phone, StudentID, DOB

0 rows

Detection Settings

Select which columns to check for duplicates:

Paste data first to see column options.

Match logic

Case-insensitive. Leading/trailing whitespace ignored.

Paste your student data and click Find Duplicates to scan for duplicate records.

How to Find Duplicate Student Records in 3 Steps

Follow these steps to get results in under a minute

Paste your student data CSV

Copy and paste your student roster from Excel, Google Sheets, or any SIS export. The tool reads the first row as headers and supports any column order.

Select columns and match logic

Choose which columns to check — name, email, phone, student ID, date of birth — and whether duplicates must match any selected column or all of them simultaneously.

Review the duplicate report

Click Find Duplicates to instantly see all duplicate groups highlighted in red, showing exactly which fields matched. Print the report to action data cleanup.

How Duplicate Finder Compares

vs spreadsheets, manual processes, and paid platforms

Feature	UniCloud360 Duplicate Finder	Manual Review	Excel VLOOKUP / COUNTIF	Database Query
Multi-column duplicate detection	✅ Name, email, phone, ID	❌ One column at a time	⚠️ Complex formulas	⚠️ SQL knowledge required
Any-match or all-match logic	✅ Toggle in settings	❌ Not possible	❌ Separate formulas	⚠️ Query rewriting needed
Grouped duplicate report	✅ Colour-coded groups	❌ Just flags	⚠️ Manual interpretation	⚠️ Raw output only
CSV paste — no import needed	✅ Paste and scan	❌ Tedious manual check	⚠️ File upload required	⚠️ DB connection required
Print-ready duplicate report	✅ One-click print	❌ Manual formatting	❌ No	❌ No
Works offline / no login	✅ Browser only	⚠️ Manual effort	✅ Yes	❌ DB access required
Cost	✅ Free forever	⚠️ Time-intensive	✅ Free	⚠️ DBA time required

What Data and Admin Teams Are Saying

Trusted by lecturers and students across Sri Lankan universities

4.9

★★★★★

4 reviews

Kavindra Seneviratne

MIS Officer

★★★★★

"Before every intake we run our applicant database through this tool. We've caught students who applied twice under slightly different name spellings, which would have caused major issues in examination records."

Dilhara Fernando

Registrar's Office

★★★★★

"We inherited a 10,000-row student database from a legacy system with many suspected duplicates. This found 47 duplicate groups in seconds — something that would have taken weeks to find manually."

Roshan Jayasinghe

IT Administrator

★★★★★

"The any-column vs all-columns match mode is exactly what we needed. Same phone number is a strong duplicate signal; same name only is too loose. Having both options saves us from writing complex SQL each time."

Amali Wickramaratne

Data Entry Supervisor

★★★★☆

"I paste from our Excel export and have a clean report in under a minute. The grouped duplicate display makes it immediately clear which records to investigate rather than hunting through a list of flags."

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