the professional unit converter • Free Software • > 6000 units • for Linux, macOS and Windows


The NumericalChameleon feels comfortable on many computers :)
Screenshots taken from the version 2.x ...

NC2 on macOS Mojave
NC 2.1 on a MacPro running macOS Mojave 10.14.4

Solus 4
NC 2.1 on Solus 4

NumericalChameleon in Edge using Webswing
NC 2.1 running in the Edge browser on Windows 10 using Webswing

NC2 auf El Capitan
NC2 on El Capitan (OS X 10.11) on an Apple MacBook Pro, external 24 inch screen

NC2 on Mavericks
NC2 on Mavericks (Mac OS X 10.9.1) on an Apple MacBook Pro

NC2 on Raspberry Pi
NC2 auf einem Raspberry Pi (ARM) unter Raspbian mit Java 7u40

NC2 on Win 8
NC 2 install screen on Windows 8 (Preview Evaluation copy, build 8400) with Java 7

NC2 on Windows 8 (searching for it)
Search results for NumericalChameleon on Windows 8 (Preview Evaluation copy, build 8400)

NC on Mac OS X
The NumericalChameleon 2.0.0 on Mac OS X 10.7.3 with Java 7u4

NC2 on Ubuntu 11.04
NC2 on Ubuntu Linux 11.04, System Look and Feel, showing favorites dialog, timezone category selected, running under OpenJDK 6u22.

NC2 on PC-BSD 9 with Open JDK 1.6.0_24

NC on CDE/Solaris
NC2 on Solaris 10 8/07 (update 4) x86 with CDE 1.6.3 and Java 1.7.0_25

NC on ecomstation
NC2 on OS/2 eComStation(tm) 2.0 GA, running with Java 6

Puppy Slacko 5.3.3
NC 2.0.0 on Puppy "Slacko" 5.3.3, Java 6u35

Screenshots taken from the 1.6.0 version ...

NC 1.6.0 on Mac OS X 10.4
NC 1.6.0 on Mac OS X 10.4 (Tiger), PPC

German GUI, Plastic Look and Feel, filter physics, category length

French GUI, Metal theme, filter travel, category calendar (date)

English GUI, Metouia-Look and Feel, filter favorites, category "spoken numbers" 

Hebrew GUI, Squareness Look and Feel, no filter, category timezones 

Greek GUI, Ocean Look and Feel, no filter, category color





The Team

The founder of this project is Johann N. Löfflmann from Germany. Since 2001 he has been working with talented people all around the world in order to improve the NumericalChameleon, and learning new areas of knowledge. The list of contributors can always be found in the latest download package and in the copyright section.

GPL v3
OSI certified
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