JaxoDraw: Feynman Diagrams made easy!
java library for XML, HTML, or SVG generation + bioinformatics classes
MiRDeep*
Unicode XML TEI text analysis platform
Interactive scientific graphing and data analysis software.
Particle Image Velocimetry
Your graphical tool for Syntactic/Semantic Structure Analysis of texts
MathTools is an aid in preparing printed math tests.
A graphical Finite State Machine (FSM) designer.
Graphics generator for pie diagram matrix from spreadsheets
cy2fluxviz : Cytoscape 2 plugin for flux distribution visualization
A drawer for origami crease pattern