alonetone
home for musicians, their tracks and albums
Annict.com
anime website
Brainstormer.online
collaborative brainstorming
Chatwoot
customer engagement platform
Ciao
uptime monitoring
Covidlist
connect vaccinations with those who need to be vaccinated
Coyote
image annotation
Danbooru
taggable image board
Datoji
easy JSON mocking for developers
E621.net
an art image board
forem
the platform that powers dev.to
Ghostlight Folio
theatrical production management
GitLab
self hosted Git management
Hackershare
social bookmarking and knowledge-sharing
Homeland
homeland.ruby-china.org
HyperCable
analytics
MarkUs
submission and grading for student assignments
Mastodon
distributed, interconnected microblogging
nokul
solution for universities to manage all the complex procedures of a university online
Open Source Billing
Beautifully Simple Billing Software
Outpost
service directories platform
Pig CI
Rails performance monitoring, plus CI
Podify
make podcasts from youtube-dl
Pupilfirst
everything you need for an online school
Racing On Rails
bike racing association management
RebelsManager
a platform for social good
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
ShinyCMS
plugin-based CMS
Splits.io
speedrunning data and analysis
TalentProtocol.com
be your own NFT
TheOdinProject.com
free web development courses
vglist.co
video game library tracking
Violet
automation, CMS, blog, forum and email thing.
weg.li
report bad german parkers
WikiEduDashboard
course dashboard system
World Cube Association
everything for the World Cube Association
Wreeto
note-taking, knowledge management, and wiki