FriendSyncer is a lightweight addon that syncs your WoW friends list across characters on the same server.

Features
- Adds missing same-server, same-faction friends on login
- Removes deleted friends
- Synchronizes friend notes
- Debug logging and slash command support

Commands
- /fs — List commands
- /fs debug — Toggle debug messages
- /fs status — Show debug status
- /fs nuke — Resets friends list and lua.
- /fs rebuild — Rebuilds lua and repopulates from the current friend list.

Saved Data
In FriendSyncer.lua;
- FriendSyncerDB — Friend records and sync flags
- FriendSyncerConfig — Debug setting

Issues

Your first login may display your friends' list out of order, with online friends not appearing at the top as usual. A relog (not a reload) resolves this issue. I'm unsure why this issue occurs; it's not even an in-game option and hasn't been for years, so I have no idea how to resolve it, and I can't even really verify it's this addon that does it. The price of convenience, I guess.

See also the inspirations for this project, such as Account-Wide Friend/Ignore Lists (KayrFriendSync) or SyncFriends;