three steps:
double click everywhere - padaccheda - possible chains of padas; the upper - may be the better
click on pada - morphological analysis (names analysis more or less correct, verbs in its infancy)
click on morph row - possible dicts articles; note: you should choose a corresponding gender or gana-pada by yourself , i.e. check morphs to dicts correspondance
ESC - closes all
Shift-mouse-over - IAST transliteration
editor - just type devanagari, keyboard layout mimics SLP1, then Enter or doubleclick

detailed description: http://sa.diglossa.org/
code: https://github.com/mbykov
license: GNU GPL
email: Michael Bykov, m.bykov@gmail.com