Johann N. Löfflmann

Welcome to my private homepage


Software Projects

I am both the inventor and the project lead of the following software projects.

BigAl
With BigAl you can calculate really BIG numbers with an accuracy your desktop calculator is still dreaming of. The only restriction is the power of your computer!  Free Software, Open Source, and platform independent.

Jacksum
Jacksum is software for computing and verifying checksums, CRCs and message digests (known as hash values and fingerprints).  Free Software, Open Source, and platform independent.

Jarfix
If you doubleclick on a jar file, and your Java application does not start, your .jar association has been hijacked. On Windows, you can fix the problem with Jarfix.

Numerical Chameleon
More than an unit converter - a Numerical Chameleon. Free Software, Open Source, and platform independent.

xml-holidays
The xml-holidays project suggests an open source standard how to formulate international holidays in XML and it provides actual holidays definitions for many countries.