Is your child (or you) nearly done learning hiragana? Or just want a good review? I found a website with online hiragana flashcards HERE. It is a simple website but very effective!! You can choose to have the hiragana displayed in order, randomly, fast, or slow. You can also choose to see hiragana words instead of individual kana.
The flashcards are a part of a larger project called TOSSランド. This website has online learning materials for many subjects, including: math, science, social studies, health, and physical education.

Nice find. Actually I was going to start searching for good on-line resources for hiragana/katakana…. timely.