Wakarukana – 4
Wakarukana does an excellent job of determining which Japanese anime, books, movies, and manga, are suitable for your current level.
Once you have clicked on an item, the site will provide you with 5 sentences or audio clips, and ask you to select which ones you understand. Depending on your comprehension, the site will determine how difficult the item you selected would be relative to your level.
As it’s a new site, they don’t yet have a ton of options, but they do provide a solid start to finding media appropriate to your level. Additionally, each search only displays 10 results, click search again and you will receive another 10 random results.
The site seems to be affiliated with Japanese Level Up, whose review you can see here
The rating is our best guess, but we haven’t yet had the opportunity to fully test and review this resource.