I recommend https://www.penpaland.com its a language exchange-based website.

This is the best website learning tool that I have been able to find so far specifically for learning kanji at Jim Rose's Kanji Cafe the program is called called icemocha .This is a great program for JLPT level 1-4 study oriented learners Ice allows you to build a word list for flashcard-like drilling, storing the words on three different lists for three differing levels of review emphasis. While studying these target words, you will have over 160,000 Japanese-English sentence pairs, complete with English glossary to practice reading the word with. http://www.kanjicafe.com/icemocha.htm If you have the so called "HTML 4 Compliant Browsers", Safari, Netscape 7.x, Opera, or Mozilla Firebird/Firefox, you can operate many of Ice's features with the keyboard In other words, if all you have is Microsoft Internet Explorer, get something else - it doesn't work right with this site!!!

http://www.mori7.info/musi/123456.php Here you can find what our Japanese study in school ( elementry + Junior High school). You find Paper Kanji Dictionary and you can see almost of Kanji.

I don't know any website with ALL kanji, it probably wouldn't be very useful either, since some kanji are extremely rare, but you could start off with the jouyou kanji at http://www.csse.monash.edu.au/~jwb/jouyoukanji.html . Then, put them in Kanji ABC ( http://kanjiabc.net/ ) and learn them using the graphemes, finally review them using Anki ( http://www.ichi2.net/anki/ ). Good luck.