AgileVentures
source code to agileventures.org
Autolab
course management and auto-grading of assignments
Bike Index
the internet's bike registry
Brainstormer.online
collaborative brainstorming
Catarse
open-source crowdfunding platform
Chatwoot
customer engagement platform
CircuitVerse.org
circuit simulator
CodeTriage
directory of open-source projects with open issues
Coinfi
crypto market intelligence platform
consul
open government and participation software
Diaspora
community-run, distributed social-network
Discourse
next-generation discussion platform
Droptune
music notifications for Spotify and Apple Music
Ekylibre
farm management information system
Errbit
open source, self-hosted error catcher
forem
the platform that powers dev.to
fromthepage.com
crowdsource handwritten documents
GitLab
self hosted Git management
Growstuff
tool for small-scale food growers
Hackershare
social bookmarking and knowledge-sharing
Helpy
A Modern Helpdesk Alternative
huginn
open-source IFTTT
Human Essentials
management system for essentials banks
icare
carpooling platform
if-me.org
mental health communication
iNaturalist.org
social network for nature stuff
Lale Help
collaborative platform for refugee support
LearnAwesome.org
social network of learners
Lewsnetter
email marketing application
libraries.io
open-source discovery service
Mastodon
distributed, interconnected microblogging
nindika.com
nintendo switch e-shop
OpenProject
project management system
Open-Source Event Manager
event management tool tailored to conferences
openstreetmap.org
crowd-sourced map of the world
Panoptes
API to support user-defined research projects
Pig CI
Rails performance monitoring, plus CI
Plylst
Spotify playlist tool
Pokr
agile estimating and planning
PublicLab.org
collaborative knowledge-exchange platform
Recipy.fr
defunct website of a recipe site
rubygems.org
The Ruby community's gem hosting service
samson
Web interface for deployments
Splits.io
speedrunning data and analysis
tip4commit.com
reward contributors
Upcase.com
learning platform for programming
weg.li
report bad german parkers