Similar to GeoServer

Avahi (software)

Bhyve

C-Store

Cacti (software)

Cdb (software)

Checkstyle

Chrony

CMU Common Lisp

Code::Blocks

Cyberduck

DVD Flick

Elasticsearch

Enlightened Sound Daemon

ERP5

Euler Mathematical Toolbox

Exa (command-line utility)

Fetchmail

FindBugs