SQLite Maestro is the premier SQLite
admin tool designed to meet the
requirements of SQLite users and to
make the work with the server simpler
and more comfortable.

SQLite Maestro allows you to create,
edit, copy, extract and drop all the
database objects such as tables, views,
build queries visually, execute queries
and SQL scripts, view and edit data
including BLOBs, represent data as
diagrams, export and import data
to/from most popular file formats, and
use a lot of other admin tools designed
for the easiest and most efficient work
with SQLite database server.

http://www.sqlmaestro.com