ActiveWorkflow.org
turn complex requirements to workflows
AgileVentures
source code to agileventures.org
Annict.com
anime website
CrimeThinc.com
the app that powers this website
Danbooru
taggable image board
Diaspora
community-run, distributed social-network
Discourse
next-generation discussion platform
exercism.io
code practice and mentorship
FederalRegister.gov
daily journal for the United States Government
Feedbin
open-source feed reader for multiple platforms
FeedBunch
simple and elegant reader
forem
the platform that powers dev.to
getsiteinspector.com
a tool for developers to check their pages
GitLab
self hosted Git management
Huboard.com
better GitHub issues
icare
carpooling platform
Lewsnetter
email marketing application
LumenDatabase
database of legal complaints and requests for removals
Mastodon
distributed, interconnected microblogging
Open Build Service
build service for Linux packages
OpenProject
project management system
Organization for Transformative Works Archive
archives of fanworks, including fanfic, fanart, and fan vids
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
va.gov
API for va.gov
vglist.co
video game library tracking
whitehall
government content publishing for gov.uk