Frequently I am in need to update a folder taking files from many different folders (and finally updating them too).
I looked on the web but I didn’t find anything that could easily do this dirty work.  So I wrote this small program.

It is a file synchronizer with unique features like handling more than 2 folders with just a few clicks.  It’s very simple, but I strongly recommend reading the included documentation.

It has the following key features:

  • multiple folder handling (2 or more).
  • the folder analysis can be modified to your needs.
  • the ability to save and load your settings in project files.
  • the ability to save in a separate folder the source changes (Export Delta).
  • multithreaded.
  • optimal file multithreaded copy engine (by using temporary files and/or by overwriting files).
  • configurable.  You can easily integrate it with a text editor, a hex editor, and a diff viewer.
  • minimal registry usage (only for Explorer integration).
  • small, fast, and clean.
  • HTML Help included.
  • for advanced users only!!!

The program is freeware and it is licensed under a Creative Commons Attribution-NoDerivs 4.0 Unported License. Creative Common license


If you are curious and want to see if this program may fit your needs, get a look at this small quick tour.

Minimal requirements:

Intel/AMD processor, Windows 10


v2024.05.772.0 – 32/64 bits
updated 25/05/2024 – Version History

NOTE: in exceptional cases, where the setup file cannot download the needed package from MS servers, go to this local support page.

Download from: (1.51 MB)

this site:
Horodruin setup package (138006 downloads )

SnapFiles [3.5/5 stars]
Softpedia [3.9/5 stars]
Betanews [4.7/5 stars]
MajorGeeks [5/5 stars]
Swiss IT Magazine [6/6 stars]

v2024.05.772.0 – 32 bits portable
updated 25/05/2024

Download from: (2.15 MB)

this site:
Horodruin portable package (59053 downloads )

My PGP Public Key (65636 downloads )  to verify the setup kit (if you wish).


  • Horodruin v6.04 main window on Windows 11
    Horodruin v6.04 main window on Windows 11