ActiveWorkflow.org
turn complex requirements to workflows
AgileVentures
source code to agileventures.org
C2
approval process automation
Canvas LMS
enterprise-grade learning management system
Carto
location intelligence and data visualization
Central
Fulcrum project planning tool fork
Chatwoot
customer engagement platform
Clain for Crown Court Defense
advocacy for defense payments
CodeCuriosity.org
platform to reward OSS contributors
Coyote
image annotation
Danbooru
taggable image board
Decidim
a framework for democracy
Diaspora
community-run, distributed social-network
Drug Gene Interaction Database
The Genome Institute's drug gene interaction database
E621.net
an art image board
ebwiki.org
database of police abuse cases against people of color
FederalRegister.gov
daily journal for the United States Government
Feedbin
open-source feed reader for multiple platforms
foreman
server lifecycle automation
GitLab
self hosted Git management
Hound
Your code, always in style.
Hours
Time registration that doesn't suck.
huginn
open-source IFTTT
Lale Help
collaborative platform for refugee support
LocalOrbit
local food management stuff
Mastodon
distributed, interconnected microblogging
OneBody
church management software
OpenSourceRails.org
the codebase to this site
Open Split Time
endurance event data management
Podify
make podcasts from youtube-dl
Pokr
agile estimating and planning
Punchclock
simple electronic punch clock
Pupilfirst
everything you need for an online school
RebelsManager
a platform for social good
Refinery CMS
a modular and extendable CMS
Registry
TLD management software
samson
Web interface for deployments
sharetribe
Marketplace platform
Skyderby
flight analysis and competition scoring
Spina
A beautiful CMS for Rails developers
Spree
a flexible e-commerce platform
Trado
simple e-commerce platform for developers
whitehall
government content publishing for gov.uk
WikiEduDashboard
course dashboard system