Remove Duplicates - Free Desktop App
Remove duplicates from CSV, Excel, Parquet files offline. Handle files with billions of rows that Excel can't open. Fast, private, no upload required.
How it works
- 1 Download FileHop Free · 144 MB · Mac & Windows
- 2 Open the folder with your files It opens like Finder or File Explorer.
- 3 Right-click your file Pick the tool you need — it runs instantly, on your device.
Handle files with billions of rows that Excel can't even open.
Just 144 MB
Why Desktop Duplicate Removal Beats Online Tools
| Feature | Online Tools | FileHop Desktop |
|---|---|---|
| Upload Required | ❌ Required | 🎯 Never |
| File Size Limit | ❌ 50MB max | ♾️ Unlimited |
| Speed | ⏳ Slow (upload/download) | ⚡ Instant |
| Batch Processing | ❌ 1 file | ✅ 1000s |
| Privacy | ⚠️ Risky (cloud upload) | 🔒 100% Local |
| No Watermark | ⚠️ Sometimes added | ✅ Never |
| Offline | ❌ No | ✅ Yes |
| Cost | Free | Free ✅ |
Real-World Use Cases
Customer Database
10M customer records with duplicate emails
Excel: Can't open (over 1M limit)
FileHop: Cleaned in 60 seconds → Removed 2.3M duplicates
Sales Transactions
50M transaction records with duplicate IDs
Excel: Impossible
FileHop: Parquet format → Cleaned in 2 minutes
Email Marketing List
5M email addresses from multiple sources
Online tools: File size limit, privacy risk
FileHop: 100% private, instant → 1.2M duplicates removed
Data Migration
Multiple CSV exports merged with overlap
Manual: Risky, error-prone
FileHop: Batch clean all files → 100% accurate
Why Choose FileHop Desktop?
Privacy First
Files never leave your computer. No cloud upload, no data collection, 100% local.
Lightning Fast
Process files 10x faster than online tools. No upload wait, no download wait.
No Limits
Convert unlimited files of any size. Batch process thousands in one click.
Batch Processing
Convert, compress, or edit hundreds of files at once — a whole folder in one go.
Works Offline
No internet required. Perfect for flights, secure environments.
Free to Use
No trial limits, no watermarks, no credit card required.
When You Need This
Real scenarios where removing duplicates solves a specific problem.
Customer list has thousands of duplicates
CRM exports, merged databases, and form submissions often have 10-30% duplicate entries. Clean them in one click.
Learn more →Reduce file size by removing redundant rows
Duplicate rows inflate your file. Remove them to shrink the file before sharing or uploading.
Learn more →Fix import duplicates from multiple sources
Merged data from multiple Excel files or databases? Find and remove duplicates by any combination of columns.
Learn more →Frequently Asked Questions
Why use FileHop to remove duplicates instead of Excel?
FileHop handles unlimited rows (Excel maxes at 1M), processes files 10-100x faster, works with files Excel can't open, and keeps your data 100% private (no cloud upload). Perfect for large datasets.
Can I remove duplicates from files larger than 1M rows?
Yes! FileHop handles CSV files with billions of rows. Excel has a hard 1M row limit and can't open files larger than that. FileHop processes even 100M+ row files efficiently.
How does duplicate detection work?
You can remove duplicates based on: 1) All columns (exact row match), 2) Specific columns (e.g., email, ID), or 3) Custom combination of columns. FileHop preserves the first occurrence and removes subsequent duplicates.
What file formats are supported?
Remove duplicates from CSV, Excel (XLSX/XLS), Parquet, TSV, and JSON files. You can also convert between formats during the cleaning process.
How fast is it for large files?
Very fast! For a 10M row CSV, FileHop typically completes in 30-60 seconds. For Parquet files, it's even faster. Excel would crash trying to open the same file.
Will my original file be modified?
No! FileHop creates a new cleaned file, leaving your original untouched. You'll get a report showing how many duplicates were found and removed.
Can I batch process multiple files?
Yes! Select folders and remove duplicates from hundreds of files at once. Each file is cleaned separately with a detailed report. Perfect for cleaning entire databases.
Is duplicate removal free?
Completely free with unlimited files and rows. No file size limits, no watermarks, no credit card required.
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