ActiveWorkflow.org
turn complex requirements to workflows
AgileVentures
source code to agileventures.org
Airesis
eDemocracy
Annict.com
anime website
AppPerf
application and performance monitoring tool
Astuto
customer feedback tool
Barong
auth server
Bike Index
the internet's bike registry
Bluedoc
document management tool
Catarse
open-source crowdfunding platform
Central
Fulcrum project planning tool fork
Chaskiq
full-featured live chat, support, and marketing platform
Chatwoot
customer engagement platform
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
Coderwall
Professional network for software engineers
Coinfi
crypto market intelligence platform
Concerto
digital signage system
consul
open government and participation software
Coursemology
open-source gameified learning platform
Coyote
image annotation
CrimeThinc.com
the app that powers this website
DCAF Case Management
case management system
Drug Gene Interaction Database
The Genome Institute's drug gene interaction database
Duckrails
tool to mock API endpoints
ebwiki.org
database of police abuse cases against people of color
Ekylibre
farm management information system
Email Dashboard
email suite for marketing and CRM
Errbit
open source, self-hosted error catcher
exercism.io
code practice and mentorship
Fairmondo
free market place in the hand of the users
FeedBunch
simple and elegant reader
forem
the platform that powers dev.to
Ghostlight Folio
theatrical production management
GitLab
self hosted Git management
Haven
self-hostable private blogging
Helpy
A Modern Helpdesk Alternative
Hitobito
full-scale group hierarchy management
Hours
Time registration that doesn't suck.
huginn
open-source IFTTT
Human Essentials
management system for essentials banks
icare
carpooling platform
if-me.org
mental health communication
Intercity
web-based Dokku deployment
Lewsnetter
email marketing application
LumenDatabase
database of legal complaints and requests for removals
Mastodon
distributed, interconnected microblogging
Morph.io
web scraping tool
Open Build Service
build service for Linux packages
Open Source Billing
Beautifully Simple Billing Software
Outpost
service directories platform
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
Postal
mail delivery platform for incoming and outgoing e-mail
Punchclock
simple electronic punch clock
Pupilfirst
everything you need for an online school
Registry
TLD management software
Reservations
equipment loans and reservations software
rubygems.org
The Ruby community's gem hosting service
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
SmartVPN Billing
billing management for hosting
Splits.io
speedrunning data and analysis
Staytus
status pages
sumofus.org
source code to sumofus.org
TaxonWorks
workbench for biodiversity informatics
TimeOverflow
time banking system
tip4commit.com
reward contributors
Trado
simple e-commerce platform for developers
Upcase.com
learning platform for programming
vglist.co
video game library tracking
weg.li
report bad german parkers
whitehall
government content publishing for gov.uk
World Cube Association
everything for the World Cube Association
Wreeto
note-taking, knowledge management, and wiki