Thanks, but...
The kanjisite.com displays kanji as images, so I can't copy them.
The jlpt-kanji.com provides almost exactly what I need, except one thing: If I want it to show the JLPT1 kanji, it displays JLPT1 including lower JLPT levels, while I need the list of kanji that are learnt on JLPT1 excluding lower levels.