AirCasting
platform for gathering, visualization and sharing of environmental data
AppPerf
application and performance monitoring tool
Calls For Proposal App
manage a conference CFP
CircuitVerse.org
circuit simulator
CodeTriage
directory of open-source projects with open issues
Coinfi
crypto market intelligence platform
consul
open government and participation software
CrimeThinc.com
the app that powers this website
Diaspora
community-run, distributed social-network
ebwiki.org
database of police abuse cases against people of color
Ecosystem Dashboard
open-source ecosystem monitoring
Ekylibre
farm management information system
Fat Free CRM
a clean, customizable CRM
forem
the platform that powers dev.to
fromthepage.com
crowdsource handwritten documents
GitLab
self hosted Git management
Growstuff
tool for small-scale food growers
HRMS
HR management
libraries.io
open-source discovery service
LumenDatabase
database of legal complaints and requests for removals
nokul
solution for universities to manage all the complex procedures of a university online
Octobox
GitHub notification manager
Open Build Service
build service for Linux packages
OpenProject
project management system
Open Split Time
endurance event data management
openstreetmap.org
crowd-sourced map of the world
PublicLab.org
collaborative knowledge-exchange platform
Punchclock
simple electronic punch clock
Recipy.fr
defunct website of a recipe site
rubygems.org
The Ruby community's gem hosting service
Splits.io
speedrunning data and analysis
TaxonWorks
workbench for biodiversity informatics
TimeOverflow
time banking system
Tracks
software for implementing David Allen's Getting Things Done™ methodology
whitehall
government content publishing for gov.uk
zammad
enterprise-ready helpdesk and customer support system