TOEFL writing editor

Many people do their preparation for TOEFL and GRE examinations. There're many software tools for reading and listening practice. But when I needed an editor like that in real exam software, I couldn't find any. So I decided to make my own little editor. It has timer, word-count feature. On start it chose random topic from the official topic pool and starts timer. Unfortunately it can't save your essay, so you should copy-paste and save it on your own (may be in future I'll add auto-save feature) as long as tracking which topics you have already written about.