AppPerf
application and performance monitoring tool
Barong
auth server
Black Candy
self-hosted music streaming server
Bluedoc
document management tool
Brainstormer.online
collaborative brainstorming
Calls For Proposal App
manage a conference CFP
Chaskiq
full-featured live chat, support, and marketing platform
Chatwoot
customer engagement platform
Ciao
uptime monitoring
CircuitVerse.org
circuit simulator
Classroom
automates repository creation and access control for teachers
Coinfi
crypto market intelligence platform
Convene
digital spaces
Coursemology
open-source gameified learning platform
Covidlist
connect vaccinations with those who need to be vaccinated
CQRS Demo Application
a Rails app using advanced DDD concepts
Datoji
easy JSON mocking for developers
datorss.com
RSS search
Droptune
music notifications for Spotify and Apple Music
Ekylibre
farm management information system
Envizon
network visualization and pentest reporting
exercism.io
code practice and mentorship
FleetYards
A Ship Database and Web API based on the official Star Citizen Ship Matrix
Gem.sh
Beautiful documentation for any RubyGem
Ghostlight Folio
theatrical production management
GitLab
self hosted Git management
Gwaphics
graphic design tool
Hackathon Manager
hackathon registration and logistics
Hackershare
social bookmarking and knowledge-sharing
HellRaiser
vulnerability scanner
Homeland
homeland.ruby-china.org
Human Essentials
management system for essentials banks
HyperCable
analytics
Intercity
web-based Dokku deployment
LearnAwesome.org
social network of learners
Listed.to
online publications with automatic newsletters
Manage IQ
Automate, optimize, and control your cloud and virtualization services
MarkUs
submission and grading for student assignments
Motor Admin
if ActiveAdmin and Blazer had a baby
nindika.com
nintendo switch e-shop
nokul
solution for universities to manage all the complex procedures of a university online
Notebook Gallery
enterprise Jupyter notebook sharing and collaboration platform
Octobox
GitHub notification manager
OpenFoodNetwork
software to manage the lifecycle of food
Open Split Time
endurance event data management
Orientation.io
Wage war against outdated documentation
Pig CI
Rails performance monitoring, plus CI
Plylst
Spotify playlist tool
Podify
make podcasts from youtube-dl
Pokr
agile estimating and planning
PublicLab.org
collaborative knowledge-exchange platform
Punchclock
simple electronic punch clock
Racing On Rails
bike racing association management
RebelsManager
a platform for social good
Recipy.fr
defunct website of a recipe site
samson
Web interface for deployments
Skyderby
flight analysis and competition scoring
Splits.io
speedrunning data and analysis
TalentProtocol.com
be your own NFT
Texterify.com
translation and localization management
Vinifera
tool to monitor leaked secrets
Violet
automation, CMS, blog, forum and email thing.
visualizer.coffee
visualize hipster coffee machines
Wreeto
note-taking, knowledge management, and wiki
zammad
enterprise-ready helpdesk and customer support system