Download AntiDupl for Windows
100% Free, Open-Source & VirusTotal Verified Image Duplicate Finder. Safe, fast, and fully offline.
Windows Standard Installer
Ideal for Desktop PC users. Full Windows integration, automatically configures local Application Data paths and system shortcuts.
Download AntiDupl v2.3.13 (.exe)VirusTotal GitHub Action Analyzed
Zero telemetry, 100% free
Official release binaries
Other Popular Download Packages
Choose the edition that best fits your workflow—no installation required, single-file executables, or compressed archives.
Single-File Portable (.exe)
Includes embedded runtime dependencies. Run instantly from a USB flash drive or any folder without installing anything on Windows.
Standard ZIP Package (.zip)
Compact zip archive for manual extraction. Stores user profiles, logs, and settings directly in the startup folder.
Portable ZIP Archive (.zip)
Full standalone zip archive with all runtime libraries unpacked. Ideal for air-gapped systems or strict enterprise environments.
Unsure which one to pick? Use the Single-File Portable (.exe) if you don’t want to install .NET runtime manually.
System Requirements & Prerequisites
Review hardware specs and runtime software dependencies to ensure seamless startup and maximum scan speed.
Supported Platforms
- ✓ Operating System: Windows 11, 10, 8.1, 7 (64-bit architecture)
- ✓ Processor: x86-64 CPU (SIMD AVX / SSE2 vector acceleration auto-detected)
- ✓ System Memory: Minimum 2 GB RAM (4 GB+ recommended for massive photo libraries)
- ✓ Disk Space: ~10 MB for Standard App / ~150 MB for Single-File Portable
Runtime Dependency
The Standard Installer (.exe) and standard ZIP require Microsoft’s latest desktop runtime environment.
Note: If you download the Single-File Portable Edition, this runtime is already bundled inside—no extra installation is needed!
Need to install the .NET Runtime manually?
You can download it directly from Microsoft’s official site, or install it instantly via Windows Terminal/PowerShell command:
winget install Microsoft.DotNet.DesktopRuntime.10
PowerShell / CMD
Security Verification & Quick Setup Guide
AntiDupl.NET binaries are built directly via open GitHub Workflows. Follow these quick steps to verify file integrity and bypass common Windows warnings.
Quick Start Instructions
Download Binary Package
Select either the Standard Installer (.exe) or Portable ZIP edition based on your preference.
Handle Windows SmartScreen Prompt
As open-source software without paid certificates, Windows may show an alert. Click “More info” and select “Run anyway”.
Launch & Add Image Folders
Open AntiDupl, configure your target photo directories in Paths, and start your first high-speed perceptual scan.
SHA256 File Hashes (v2.3.13)
Verify download integrity via PowerShell using Get-FileHash <filename>:
Frequently Asked Download Questions
Everything you need to know about installation, safety, updates, and portable usage.
Q. Which download package should I choose?
For most Windows users, download the primary Standard Installer (.exe) or the Single-File Portable (.exe). If you want a quick plug-and-play solution on a USB drive without installing the .NET runtime manually, the Single-File Portable version includes everything bundled in one file.
Q. Why does Windows Defender or SmartScreen block the download?
AntiDupl.NET is a 100% free, open-source project. Code-signing certificates cost hundreds of dollars per year, so unsigned binaries trigger Windows SmartScreen warnings. You can verify that all automated builds pass VirusTotal checks on GitHub, click “More info”, and select “Run anyway”.
Q. How do I update AntiDupl.NET to the latest version?
Simply download the latest release executable or ZIP package and overwrite your existing AntiDupl directory. Your saved scan projects, user options, and configuration files will remain completely intact.
Q. Is there a native macOS or Linux desktop version?
The primary Graphical User Interface (GUI) is designed for Windows. However, advanced Linux users can run the cross-platform command-line utility (AntiDuplX) or launch AntiDupl.NET via Wine/Proton compatibility layers.
What’s New in AntiDupl.NET v2.3.13
Explore the latest performance upgrades, engine optimizations, regex exclusion features, and hotkey enhancements built into the latest release.
RegEx File Exclusion
Ignore specific paths, thumbnails, or system files automatically using custom regular expression matching rules (#218).
.NET 10 & C++ SIMD Tuning
Upgraded compilation pipelines to .NET 10.0 and updated SIMD vector instruction handling for broad CPU compatibility (#215, #219).
Filename Difference Highlighting
Vertical comparison mode now highlights filename differences in red for quick identification of duplicate naming patterns (#196).
Full Release Changelog Summary
- • New Feature: Added custom hotkey options to quickly open the image difference comparison tool (#209).
- • File Formats: Added missing image file extensions in the default file selection window (#199).
- • Portable Path Fix: Portable edition now locks user settings inside the application startup directory without polluting AppData.
-
•
Stability Fix: Resolved
IndexOutOfRangeExceptioninResultsListViewcaused by hotkey event propagation (#225, #227). - • Dependencies: Updated vcpkg libraries, libwebp, and openjpeg decoders for improved image rendering.
Standard Installer vs. Portable Edition
Compare features, file sizes, and deployment environments to choose the right AntiDupl.NET package for your workflow.
| Feature / Capability | Standard Installer (.exe) | Single-File Portable (.exe) |
|---|---|---|
| Download Size | 2.5 MB (Ultra Compact) | 126 MB (Includes Runtime) |
| System Installation | Required (Standard Windows Setup) | None (Plug-and-Play) |
| .NET 10.0 Dependency | Requires separate .NET Desktop Runtime | Pre-bundled / Self-contained |
| User Data Storage | Windows Application Data Folder (AppData) |
Application Startup Directory (Self-contained) |
| USB Drive Compatibility | Not Recommended | Ideal for Flash Drives / External HDDs |
| Best Suitable For | Primary Desktop PC / Permanent Workstation | IT Administrators, USB Use & Air-gapped Systems |
Summary: If you are using your personal Windows PC and already have .NET installed, choose the Standard Installer (2.5 MB). If you want zero system traces or plan to run AntiDupl from an external hard drive, pick the Single-File Portable Edition (126 MB).
Common Download Issues & Fixes
Quick solutions for missing .NET runtimes, corrupted extractions, network blocks, and air-gapped system deployments.
App Fails to Launch / Instant Closure
Cause: The Standard Installer or Standard ZIP requires the .NET 10 Desktop Runtime, which isn’t installed on your PC.
“Windows Protected Your PC” Warning
Cause: SmartScreen flags open-source software built without expensive EV code-signing certificates.
Missing DLL Files / Extraction Error
Cause: Running AntiDupl directly from inside the compressed ZIP file without fully extracting it first.
Enterprise & Offline Air-Gapped Deployment
AntiDupl.NET requires zero internet connectivity during scanning and makes no external network requests. For air-gapped environments or corporate IT deployments, transfer the Single-File Portable ZIP edition via USB drive. Unpack it into any local directory—no administrative installation privileges or internet registration needed.
Ready to Clean Up Your Photo Library?
Download AntiDupl.NET now and start reclaiming disk space with ultra-fast, perceptually accurate duplicate image detection.