SuperSorter - Clean up your bookmark mess!
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Firefox Sync - Bring your Firefox bookmarks, tabs, or passwords wherever you go with Firefox Sync. Share between computers and mobile devices. Get Firefox now!
Bookmarks Backuper - Backups Chrome bookmarks to your Google Drive.
EverSync - Everhelper - Eversync
Bookmarks Clean Up - Find and remove duplicated bookmarks manually and in batches, get rid of broken bookmark links and empty folders.