open source


Program Update – Klepsydra goes to v1.3

Klepsydra, the desktop countdown timer with sound alarm, now at v1.3 got:

  • Add option for system shutdown
  • Load window at last position

As its predecessor, the new features also uses native WinAPI calls and avoid any extra libraries and OCX dependencies.
For more info, updates and downloads see at the Project’s Home Page.

Klepsydra 1.3 system shutdown feature (english and greek UI)


Program Update – Klepsydra goes to v1.2

Klepsydra is a desktop countdown timer with sound alarm, now at v1.2 got:

  • Add pause and resume functionality
  • Change button captions to graphic, and make captions as tooltips
  • Add window minimize button
  • Seven-segment font for countdown
  • Fix sometimes no-sound playing bug

As its predecessor, the new features also uses native WinAPI calls and avoid any extra libraries and OCX dependencies.

For more info, updates and downloads see at the Project’s Home Page.


Program Update – Vatlidator 3.0 now support validation for all EU VAT IDs

Vatlidator 3.0 - English UIAfter valid.eu interruption, Vatlidator 2.1 is not longer retrieve VAT ID info.

Now introducing the Vatlidator 3.0, a whole new validation and info tool for all the EU VAT IDs (AT, BE, BG, CY, CZ, DE, DK, EE, EL, ES, FI, FR, GB, HR, HU, IE, IT, LT, LU, LV, MT, NL, PL, PT, RO, SE, SI, SK), retrieving information directrly from the European Commision VIES SOAP Service.

The new interface, now supports two languages, Greek and English.

As its predecessor, is free software distributed under the terms of the GNU GPL 3 with installer and portable package available.

For downloads, updates and more info see the program’s home page.


Introducing Guietzli – The Guetzli graphical front-end

Guietzli is a MS Windows graphic front-end for the Google Guetzli JPEG Encoder.

Guetzli is an advanced JPEG encoder, with a complete new psycho-optical model, introduced by Google, claims better visual result with smaller file size. And it’s 100% compatible with the JPEG format.

Google provide a command line tool for the Guetzli encoder, although with this Windows front-end you can easily put files to an encode queue, select the output folder and the encoding quality.

This program is open source software, distributed under the terms of the GNU GPL 3.

For more info, updates and downloads see at the Project’s Home Page.


Afterzip becomes Open Source

Afterzip is a a desktop program (uses Java Swing for UI) usefull for split and merge files.

It was developed in 2003 and originaly distributed as Freeware.
Now, 14 years later, the binary files rebuilded, the program repacked and the source code is released under the terms and conditions of the GNU GPL 3.

You get full info and downloads for Afterzip, visiting the project’s Home Page at multipetros.gr/public-projects/desktop/afterzip/


Introducing VisualTree – a graphic version of the DOS tree command

VisualTree is a graphic version of the DOS tree command, wich allows the user to view a listing of files and folders in tree structure.

In VisualTree, you can choose to view folders only without the files and/or ASCII art for tree nodes. Also you can change font face, size, style, fore and background color. And of course you can save the tree structure to text file.

This program is open source software, distributed under the terms of the GNU GPL 3.

For more info, updates and downloads see at the Project’s Home Page.