LJ-Sec is a bulk journal entry management tool. It allows you to bulk change post security, delete posts, find and replace items, repost journal entries to other LJ-compatible servers, and other assorted odds and ends.
LJ-Sec has been updated to version 0.70 today. This adds the following functionality:
Adult flag management. Bulk-change the adult flag setting on one or many journal entries.
Bulk-add or bulk-replace tags in your journal.
Several changes that make LJ-Sec easier to use with other Livejournal sites.
Offline editing of the journal cache is now supported.