Bulk add tags to posts

Hi all,

I have a question.

I am searching for a plugin, that allows me to simple add tags to my posts.
I know i can add tags by editing each individual post, but since my blog contains lots of posts, i hope that there is a plugin which allows me to simply/fast add tags to my posts without having to edit each post one by one..

I already did a search in de plugins section of ww.wp.xz.cn, but i do not know which plugin is the best choice.

So i hope someone can help me out with this.

Thanks in advance.

Grtz.

PS: sorry for the broken English, it’s not my native language