ActiveWorkflow.org
turn complex requirements to workflows
Airesis
eDemocracy
Annict.com
anime website
Brimir
an email helpdesk
Caffeinate
a framework for easily creating and scheduling email campaigns
Calls For Proposal App
manage a conference CFP
Central
Fulcrum project planning tool fork
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
DCAF Case Management
case management system
Diaspora
community-run, distributed social-network
EasyRaceLapTimer
open-source IR lap time tracker
Ekylibre
farm management information system
Errbit
open source, self-hosted error catcher
Expertiza
peer-reviews app, supported by the National Science Foundation
Fat Free CRM
a clean, customizable CRM
FederalRegister.gov
daily journal for the United States Government
forem
the platform that powers dev.to
Growstuff
tool for small-scale food growers
Hackathon Manager
hackathon registration and logistics
Helpful
simple and elegant support system
Helpy
A Modern Helpdesk Alternative
Hours
Time registration that doesn't suck.
Intercity
web-based Dokku deployment
Lale Help
collaborative platform for refugee support
LumenDatabase
database of legal complaints and requests for removals
Morph.io
web scraping tool
Octobox
GitHub notification manager
OneBody
church management software
Open Build Service
build service for Linux packages
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
Organization for Transformative Works Archive
archives of fanworks, including fanfic, fanart, and fan vids
Peatio
crypto currency exchange software
pinballmap.com
source code to pinballmap.com
planningalerts.org.au
planning alerts for Australians
PublicLab.org
collaborative knowledge-exchange platform
Racing On Rails
bike racing association management
Reservations
equipment loans and reservations software
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
sharetribe
Marketplace platform
SmartVPN Billing
billing management for hosting
sumofus.org
source code to sumofus.org
TaxonWorks
workbench for biodiversity informatics
Teambox
the original teambox.com
Trado
simple e-commerce platform for developers
Upcase.com
learning platform for programming
va.gov
API for va.gov
whitehall
government content publishing for gov.uk
World Cube Association
everything for the World Cube Association