AgileVentures
source code to agileventures.org
AirCasting
platform for gathering, visualization and sharing of environmental data
Airesis
eDemocracy
Annict.com
anime website
Barong
auth server
Central
Fulcrum project planning tool fork
Chaskiq
full-featured live chat, support, and marketing platform
Chatwoot
customer engagement platform
Coderwall
Professional network for software engineers
Coinfi
crypto market intelligence platform
Coursemology
open-source gameified learning platform
Datoji
easy JSON mocking for developers
datorss.com
RSS search
Diaspora
community-run, distributed social-network
Droptune
music notifications for Spotify and Apple Music
ebwiki.org
database of police abuse cases against people of color
Ecosystem Dashboard
open-source ecosystem monitoring
Ekylibre
farm management information system
exercism.io
code practice and mentorship
FleetYards
A Ship Database and Web API based on the official Star Citizen Ship Matrix
forem
the platform that powers dev.to
GitLab
self hosted Git management
Growstuff
tool for small-scale food growers
Hackathon Manager
hackathon registration and logistics
Hackershare
social bookmarking and knowledge-sharing
Helpy
A Modern Helpdesk Alternative
Hitobito
full-scale group hierarchy management
iNaturalist.org
social network for nature stuff
LearnAwesome.org
social network of learners
libraries.io
open-source discovery service
Listed.to
online publications with automatic newsletters
Mastodon
distributed, interconnected microblogging
Notebook Gallery
enterprise Jupyter notebook sharing and collaboration platform
OpenFarm
open database for farming and gardening knowledge
OpenProject
project management system
Open Source Billing
Beautifully Simple Billing Software
openstreetmap.org
crowd-sourced map of the world
Outpost
service directories platform
Panoptes
API to support user-defined research projects
Peatio
crypto currency exchange software
planningalerts.org.au
planning alerts for Australians
PublicLab.org
collaborative knowledge-exchange platform
Pupilfirst
everything you need for an online school
RebelsManager
a platform for social good
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
Skyderby
flight analysis and competition scoring
Splits.io
speedrunning data and analysis
Squash
exception reporting and bug analysis by Square
sumofus.org
source code to sumofus.org
TaxonWorks
workbench for biodiversity informatics
Terrastories
geostorytelling
Texterify.com
translation and localization management
uk-postcodes
postcodes application
Upcase.com
learning platform for programming
va.gov
API for va.gov
vglist.co
video game library tracking
WikiEduDashboard
course dashboard system
World Cube Association
everything for the World Cube Association
Wreeto
note-taking, knowledge management, and wiki