The Linguaspectrum website enables you to create crossword and hangman puzzles which can be completed online. It is easy to use. To do this you need to register and then enter your answers and clues for the puzzle. Once you have completed this you need to submit it for publishing and wait for a confirmation email with link (it took less than 24 hours for mine to be published online. You can have a look at ones I created yesterday: You can find my puzzle here and my hangman game here.