FanFiction.net

FanFiction.net (FF.net) is one of the oldest and largest fanfiction platforms, founded in 1998. This pioneering site hosts:
10M+ stories across 40+ categories
Dedicated app for mobile reading
Simple formatting (no CSS/HTML required)
Active forum communities (Writer’s Café, Beta Boards)

Key Features:
✓ Fandom-specific archives (Harry Potter, Naruto, etc.)
✓ Follow/favorite system
✓ Document uploads (PDF/EPUB support)
✓ “Communities” function (fandom groups)