Web Interface to Octave allows to run GNU Octave commands from a web browser. Application is written in PHP and needs SQL database. It supports user profiles, user-created functions, scripts.
JOELib/JOELib2 is a cheminformatics library which supports SMARTS substructure search, descriptor calculation, processing/filtering pipes, conversion of file formats, 100% pure Java, and interfaces to external programs (e.g. Ghemical) are available.