dupeGuru
Free Duplicate File Finder for Windows, macOS & Linux
Clean up your computer in minutes. dupeGuru is an open-source, cross-platform tool that detects duplicate files using advanced fuzzy matching—whether the names match or not.
Quick & Accurate Scanning
Fuzzy Name & Content Matching
Safe File Management System
Cross-Platform Support
About dupeGuru
dupeGuru is a powerful tool designed to find duplicate files on your computer. It doesn’t just check for identical filenames — it goes deeper, analyzing file content using a smart fuzzy matching algorithm that detects similar or duplicate files, even if their names differ.
Built in Python 3, dupeGuru runs smoothly on all major operating systems.
Its user interface is written in Objective-C using Cocoa for macOS, and Qt5 for Linux and Windows, ensuring a consistent experience across platforms.
- Scan by filename or file content
- Compare results quickly and safely
- Delete, move, or copy duplicates as you prefer
- Customize your scanning rules for precise control
- Cross-platform compatibility
- Portable and lightweight
- Smart fuzzy matching algorithm
Key Features
Fuzzy Matching Algorithm
Finds duplicates even when names aren’t identical.
Power Marker Tool
Visually marks potential duplicates for faster review.
Custom Scanning Rules
Modify detection sensitivity, file types, and directories.
Group Management System
Keeps similar files together for easy comparison.
Portable Application
No installation needed; just download and run.
Safe by Design
Built to prevent accidental file loss with a tested, reliable engine.
How dupeGuru Works
Cleaning up duplicate files doesn’t have to be complicated — and with dupeGuru, it isn’t. The tool is designed with simplicity and efficiency in mind, so anyone can use it effortlessly, even without technical experience.
Follow these quick steps to see how dupeGuru makes file organization easy, fast, and completely safe:
Choose the Folders You Want to Scan
Start by selecting one or multiple folders on your system where you suspect duplicate files may exist. dupeGuru allows you to scan an entire drive or specific directories, giving you full control over where to look.
Select Your Preferred Scan Type
Next, choose between two powerful scanning modes:
Filename Scan – Uses a fuzzy matching algorithm to identify files with similar or nearly identical names.
Content Scan – Goes deeper by comparing the actual content of your files, ensuring that even renamed duplicates are detected.
This flexibility allows you to target duplicates based on your exact needs — whether it’s photos, documents, videos, or any other file type.
Review and Analyze the Results
Once the scan is complete, dupeGuru organizes all detected duplicates into easy-to-understand groups. Each file group includes detailed information such as file name, size, path, and similarity percentage.
The clean and intuitive interface lets you quickly verify which files you want to keep and which ones can be safely removed.
Manage Duplicates with Confidence
After reviewing your results, you can decide how to handle the duplicates. dupeGuru offers several safe actions:
Delete duplicates to free up storage space instantly.
Move or Copy them to a different location for backup or organization.
To protect your data, dupeGuru uses a Reference Directory system that ensures important files are never deleted by mistake. The Power Marker feature visually highlights the best version of each file, making it easy to identify what should stay and what can go.
Why Choose dupeGuru
Choosing the right duplicate file finder isn’t just about cleaning space — it’s about doing it accurately, safely, and efficiently.That’s exactly where dupeGuru stands out. It’s not just another tool; it’s a professional-grade, open-source solution trusted by thousands of users worldwide.Designed for precision, flexibility, and complete peace of mind, dupeGuru gives you full control over how duplicates are detected and handled — without ever putting your important data at risk.
Below are the key reasons why dupeGuru is the preferred choice for professionals, developers, and everyday users alike:
- Lightning-Fast Scanning
Speed matters — and dupeGuru is built for it.With its optimized fuzzy matching engine, dupeGuru scans your entire drive in minutes while keeping system resource usage to a minimum. It intelligently identifies similar and identical files, even within large folders, ensuring quick results without slowing down your computer.
- Smart Matching Technology
Unlike basic duplicate finders that rely only on exact file names, dupeGuru uses advanced fuzzy matching to detect similarities between filenames.
Whether a file is named “photo_001.jpg” or “photo copy (1).jpg”, dupeGuru’s algorithm recognizes them as potential duplicates. This smart approach guarantees that you find duplicates others might miss.
- Content-Based Comparison
Names can be misleading — that’s why dupeGuru goes deeper. It compares the actual file contents to identify true duplicates, even when filenames are completely different. This makes it ideal for cleaning up music libraries, photo collections, and large archives where files often share identical content but have different titles.
- Fully Customizable
Every user’s needs are different, and dupeGuru respects that. Its customizable scanning engine lets you define exactly how strict or lenient you want your scans to be. Adjust matching thresholds, exclude folders, or focus only on specific file types — you’re always in control. This flexibility ensures precise, relevant results every time.
- Safe and Secure Deletion
Your data safety is dupeGuru’s top priority. Its unique reference directory system ensures that you never delete files you didn’t mean to. Before any action is taken, dupeGuru groups similar files and allows you to confirm which ones should stay or go. It’s designed to give you confidence in every cleanup.
- Cross Platform Support
dupeGuru is truly universal. Whether you’re using Windows, macOS, or Linux, dupeGuru delivers the same powerful features and user-friendly interface on all platforms. Its cross-platform compatibility makes it perfect for users who work across multiple operating systems and need consistent performance everywhere.
Why dupeGuru Stands Out
| Feature | dupeGuru | Duplicate Cleaner Pro | CCleaner Duplicate Finder | Easy Duplicate Finder |
|---|---|---|---|---|
| Price | ✅ Free & Open Source | ❌ Paid | ❌ Paid (Pro Version) | ❌ Paid |
| Cross-Platform Support | ✅ Windows, macOS, Linux | ❌ Windows Only | ✅ Windows & macOS | ❌ Windows Only |
| Fuzzy Matching (Similar Names) | ✅ Yes | ✅ Yes | ❌ No | ✅ Yes |
| Content-Based Scanning | ✅ Yes | ✅ Yes | ❌ Limited | ✅ Yes |
| Music Mode (Tag Matching) | ✅ Yes | ✅ Limited | ❌ No | ✅ Yes |
| Picture Mode (Visual Match) | ✅ Yes | ✅ Yes | ❌ No | ✅ Yes |
| Portable (No Installation) | ✅ Yes | ❌ No | ❌ No | ❌ No |
| Ad-Free Experience | ✅ 100% Ad-Free | ❌ No | ❌ No | ❌ No |
| Privacy Friendly | ✅ No Data Tracking | ❌ Limited | ❌ Limited | ❌ Limited |
| Community Support | ✅ Open Source Community | ❌ Closed | ❌ Limited | ❌ Limited |
Open Source & Community Powered
dupeGuru stands for transparency, collaboration, and user freedom. As an open-source project, its complete source code is publicly available for anyone to inspect, modify, or contribute to. This means there are no hidden elements, no intrusive ads, and no data tracking — just a clean, efficient tool built entirely for user trust and performance. Every improvement, bug fix, and new feature in dupeGuru comes from a global network of passionate developers who believe in open collaboration.
Their continuous contributions ensure that dupeGuru remains secure, up to date, and optimized for all platforms. Whether you’re a casual user managing your personal files or a developer interested in the project’s evolution, dupeGuru offers full transparency and reliability. It’s a tool built by the community, for the community — empowering users to stay in complete control of their digital environment.
Download dupeGuru
Download the latest version of dupeGuru and take full control of your computer’s storage. Whether you’re running Windows, macOS, or Linux, dupeGuru helps you quickly identify and remove duplicate files that are silently consuming your valuable disk space.
Supported Systems
Windows, macOS, Linux
Installation
Not required (Portable App)
File Size
Under 1 MB
User Testimonials
Discover how dupeGuru has transformed digital file management for professionals worldwide
Help & Support
Find answers to common questions about dupeGuru functionality and implementation
What is dupeGuru?
dupeGuru is an open-source software tool designed to find and remove duplicate files from your computer. It works on Windows, macOS, and Linux, and uses a smart fuzzy matching algorithm to detect both exact and similar file duplicates.
Is dupeGuru free to use?
Yes, dupeGuru is completely free and open source. You can download, use, and even modify it without any subscription or hidden cost.
How does dupeGuru find duplicate files?
dupeGuru scans your selected folders and compares either filenames or file contents. Its fuzzy matching algorithm helps detect duplicates even when filenames aren’t identical.
Does dupeGuru delete files automatically?
No. dupeGuru never deletes files automatically. It only identifies duplicates and allows you to review them first, ensuring you stay in full control.
Can I recover deleted files after using dupeGuru?
If you delete files through dupeGuru, they are moved to your system’s recycle bin or trash (depending on your OS). You can recover them from there if needed.
Is dupeGuru safe to use?
Yes. dupeGuru is built with safety in mind. Its reference directory and grouping system prevent accidental deletions, helping you remove only the files you intend to.
Does dupeGuru work on macOS and Linux?
Absolutely. dupeGuru is fully cross-platform, running smoothly on Windows, macOS, and Linux with consistent performance and features.
What types of files can dupeGuru scan?
dupeGuru can scan and compare all types of files — documents, images, videos, music, and archives — as long as they are stored locally or on accessible drives.
What’s the difference between “Filename Scan” and “Content Scan”?
Filename Scan: Finds duplicates based on file names using fuzzy matching.
Content Scan: Compares the actual contents of files to detect true duplicates, even if names differ.
How fast is dupeGuru?
dupeGuru is extremely fast thanks to its optimized Python 3 engine. Most users can scan thousands of files in just a few minutes, depending on system speed.
Does dupeGuru require installation?
No installation is required. dupeGuru is a portable application, meaning you can run it directly after download without modifying your system.
Can I exclude specific folders from scanning?
Yes, dupeGuru lets you exclude any folders or file types from being scanned, allowing more focused and efficient searches.
What is the Power Marker feature?
The Power Marker highlights likely duplicates, helping you quickly identify and review which files can be safely deleted or kept.
Does dupeGuru support network drives or external disks?
Yes, you can scan external drives, USBs, or network-connected folders — as long as they are accessible from your computer.
How customizable is dupeGuru?
Highly customizable. You can adjust its matching sensitivity, filter rules, scan types, and file comparison behavior to match your exact needs.
Is dupeGuru open source?
Yes. dupeGuru’s source code is completely open to the public, allowing developers to inspect, modify, and contribute to its ongoing development.
What programming languages and technologies does dupeGuru use?
dupeGuru is primarily written in Python 3. It uses Qt5 for Windows and Linux interfaces, and Objective-C with Cocoa for macOS.
How accurate is dupeGuru’s fuzzy matching?
dupeGuru’s fuzzy matching algorithm is highly accurate and can identify duplicates even when filenames differ slightly due to typos, extra numbers, or formatting changes.
Can dupeGuru move or copy duplicate files instead of deleting them?
Yes. dupeGuru gives you full control over duplicates — you can delete, move, or copy them to another location instead of removing them permanently.
Where can I download the latest version of dupeGuru?
You can always get the latest official and verified version of dupeGuru from the official dupeGuru website or its open-source repository for Windows, macOS, and Linux.
dupeGuru – Best Free Duplicate File Cleaner
Download dupeGuru to find duplicate files fast on Windows, macOS, and Linux. A free, reliable, and easy tool to clean duplicates and free up storage.
Price: Free
Price Currency: $
Operating System: Windows
Application Category: Software
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