- merb-autoscaffold 10 A gem to provide free scaffolding for all models
- mex 7 A stand-alone Merb eXception tracker inspired by logged_exception
- fightinjoe-merb-blog 6 Personal blog software written with Merb
- yql_test 6 Unit testing framework for YQL
- merb_admin 4 Merb Slice that provides an Admin panel for viewing and editing models in the database.