Abalone
data tracking and analytics for conservation efforts
AgileVentures
source code to agileventures.org
AirCasting
platform for gathering, visualization and sharing of environmental data
Airesis
eDemocracy
Alaveteli
easy FOIA requests for any jurisdiction
Amahi
your personal cloud and media server
Annict.com
anime website
AppPerf
application and performance monitoring tool
Astuto
customer feedback tool
Autolab
course management and auto-grading of assignments
Barong
auth server
Bike Index
the internet's bike registry
Binda CMS
headless CMS
Bluedoc
document management tool
Caffeinate
a framework for easily creating and scheduling email campaigns
Calls For Proposal App
manage a conference CFP
Central
Fulcrum project planning tool fork
Chaskiq
full-featured live chat, support, and marketing platform
Chatwoot
customer engagement platform
CircuitVerse.org
circuit simulator
Clain for Crown Court Defense
advocacy for defense payments
Classroom
automates repository creation and access control for teachers
CodeCuriosity.org
platform to reward OSS contributors
Coinfi
crypto market intelligence platform
consul
open government and participation software
Convene
digital spaces
Coursemology
open-source gameified learning platform
Covidlist
connect vaccinations with those who need to be vaccinated
Coyote
image annotation
CrimeThinc.com
the app that powers this website
Cuttlefish
a good-enough SMTP server so you can ditch SMTP providers
Datoji
easy JSON mocking for developers
datorss.com
RSS search
DCAF Case Management
case management system
Diaspora
community-run, distributed social-network
Duckrails
tool to mock API endpoints
ebwiki.org
database of police abuse cases against people of color
exercism.io
code practice and mentorship
Expertiza
peer-reviews app, supported by the National Science Foundation
Fairmondo
free market place in the hand of the users
Fat Free CRM
a clean, customizable CRM
FeedBunch
simple and elegant reader
forem
the platform that powers dev.to
fromthepage.com
crowdsource handwritten documents
getsiteinspector.com
a tool for developers to check their pages
Ghostlight Folio
theatrical production management
GitLab
self hosted Git management
Growstuff
tool for small-scale food growers
Hackathon Manager
hackathon registration and logistics
Helpy
A Modern Helpdesk Alternative
Hound
Your code, always in style.
Human Essentials
management system for essentials banks
icare
carpooling platform
if-me.org
mental health communication
iNaturalist.org
social network for nature stuff
libraries.io
open-source discovery service
lobsters
link-aggregation site, inspired by Hacker News
Locomotive CMS
a multisite CMS with liquid templating
Loomio
make decisions together
LumenDatabase
database of legal complaints and requests for removals
Morph.io
web scraping tool
Motor Admin
if ActiveAdmin and Blazer had a baby
nindika.com
nintendo switch e-shop
Open Build Service
build service for Linux packages
OpenFarm
open database for farming and gardening knowledge
OpenFoodNetwork
software to manage the lifecycle of food
OpenProject
project management system
openSNP
annotate your SNP-set
Open-Source Event Manager
event management tool tailored to conferences
OpenSourceRails.org
the codebase to this site
Open Split Time
endurance event data management
openstreetmap.org
crowd-sourced map of the world
Organization for Transformative Works Archive
archives of fanworks, including fanfic, fanart, and fan vids
Outpost
service directories platform
Panoptes
API to support user-defined research projects
Peatio
crypto currency exchange software
Pig CI
Rails performance monitoring, plus CI
pinballmap.com
source code to pinballmap.com
planningalerts.org.au
planning alerts for Australians
Podify
make podcasts from youtube-dl
Postal
mail delivery platform for incoming and outgoing e-mail
Punchclock
simple electronic punch clock
Pupilfirst
everything you need for an online school
Racing On Rails
bike racing association management
RebelsManager
a platform for social good
Recipy.fr
defunct website of a recipe site
rubygems.org
The Ruby community's gem hosting service
ShinyCMS
plugin-based CMS
Skyderby
flight analysis and competition scoring
Snippet Manager
manage your snippets
Splits.io
speedrunning data and analysis
sumofus.org
source code to sumofus.org
TagTeam
social tagging for academics
TalentProtocol.com
be your own NFT
TaxonWorks
workbench for biodiversity informatics
Terrastories
geostorytelling
Texterify.com
translation and localization management
TheOdinProject.com
free web development courses
tip4commit.com
reward contributors
Tracks
software for implementing David Allen's Getting Things Done™ methodology
Upcase.com
learning platform for programming
va.gov
API for va.gov
vglist.co
video game library tracking
WikiEduDashboard
course dashboard system
World Cube Association
everything for the World Cube Association
zammad
enterprise-ready helpdesk and customer support system