AllDup is a freeware tool for searching and removing file duplicates on your computer, network shares or external storage media. The fast search algorithm find duplicates of any file type, e.g., text, pictures, music or movies.
Publisher’s description
What is AllDup?
AllDup by MTSD is free Windows software.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit and 32-bit Windows. The main installer is 23.4 MB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Pros / Cons
Pros
- Free to use
- Documented silent install
Cons
- No native ARM64 build
- Installation needs administrator rights
- No update for more than a year
In short: AllDup is a free Windows tool for 64-bit and 32-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is AllDup safe to download?
- The file is served by alldup.info, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
45FFF7378008739CB669853541AF226C575243DEC0C1B79825C91B2AB60559B6· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 4.5.72Latest | September 26, 2023 | 23.4 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id MTSD.AllDup -eAllDupSetup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- MTSD
- Licence
- Freeware
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 4.5.72
- Released
- September 26, 2023
- Added to the catalogue
- January 29, 2026
- Versions listed
- 1
- Website
- alldup.info
- winget ID
- MTSD.AllDup
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is AllDup free?
Yes. AllDup is free to use.
Is AllDup safe to download?
The download comes from alldup.info, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install AllDup with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can AllDup be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does AllDup run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.