Times Spelling Bee – the quicker you can spell, the more points you score.
Spelling Connections has numerous exercises in spelling and proofreading; note that registration is not necessary to use the games (exercises) which are free resources. For each of the exercises choose the grade and the unit then click Load game; the exercises increase in difficulty.
This site allows you can set up your own spelling tests. No log on is required – simply enter your words to create a spelling test.
You will need the sound turned up.