ImageJ - and Other Health Care
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
MediaLab Document Control - Other Laboratory
UCSF Chimera - UCSF Chimera is a highly extensible program for interactive visualization and analysis of molecular...
OpenCFU - A powerful, user-friendly and free software to count and characterise bacterial (and other cell) colonies forming units from pictures.
Jmol - Jmol is a free, open source molecule viewer for students, educators, and researchers in chemistry...