TalesTrove

Save and organize your favorite fictional stories from multiple platforms! TalesTrove helps you keep track of stories you follow across FanFiction.net, Archive Of Our Own, and QuestionableQuesting.
With TalesTrove, you can:

Export your saved story links in various formats (JSON, TXT, CSV, HTML, and browser bookmarks)
Back up your favorites and followed stories
Manage your reading list across different platforms in one place

Simple to use and privacy-focused – all data is stored locally on your device.