Abalone
data tracking and analytics for conservation efforts
AgileVentures
source code to agileventures.org
Airesis
eDemocracy
C2
approval process automation
Calls For Proposal App
manage a conference CFP
Clain for Crown Court Defense
advocacy for defense payments
DCAF Case Management
case management system
ebwiki.org
database of police abuse cases against people of color
Expertiza
peer-reviews app, supported by the National Science Foundation
Fat Free CRM
a clean, customizable CRM
Fat Free CRM
the original Rails-based CRM
FleetYards
A Ship Database and Web API based on the official Star Citizen Ship Matrix
Helpy
A Modern Helpdesk Alternative
Hitobito
full-scale group hierarchy management
Human Essentials
management system for essentials banks
Loomio
make decisions together
OpenFoodNetwork
software to manage the lifecycle of food
OpenProject
project management system
Open Source Billing
Beautifully Simple Billing Software
Open-Source Event Manager
event management tool tailored to conferences
Open Split Time
endurance event data management
Outpost
service directories platform
pinballmap.com
source code to pinballmap.com
Racing On Rails
bike racing association management
RailsCasts
RailsCasts.com source code (thanks Ryan)
Registry
TLD management software
StockAid
manages inventory for the Grateful Garment Project
sumofus.org
source code to sumofus.org
TalentProtocol.com
be your own NFT
TaxonWorks
workbench for biodiversity informatics
Texterify.com
translation and localization management
TheyVoteForYou
Holding politicians accountable
va.gov
API for va.gov
vglist.co
video game library tracking
WikiEduDashboard
course dashboard system