Hello Michael,
I think you are looking for the ldapbrowser (http://www-unix.mcs.anl.gov/~gawor/ldap/).
Note that this tool is not maintained anymore since years. It has some serious bugs and should not be recommended without mentioning that.
Duly noted - I was not aware of any serious problems. We have been using it since 2003 without too much trouble.
Then you haven't used (back-)slashes in DNs together with JNDI... ;-)
Ciao, Michael.