Abalone
data tracking and analytics for conservation efforts
ActiveWorkflow.org
turn complex requirements to workflows
AirCasting
platform for gathering, visualization and sharing of environmental data
Alaveteli
easy FOIA requests for any jurisdiction
AppPerf
application and performance monitoring tool
Astuto
customer feedback tool
Barong
auth server
Black Candy
self-hosted music streaming server
Bluedoc
document management tool
Brainstormer.online
collaborative brainstorming
Calls For Proposal App
manage a conference CFP
Catarse
open-source crowdfunding platform
Chaskiq
full-featured live chat, support, and marketing platform
Chatwoot
customer engagement platform
CircuitVerse.org
circuit simulator
Classroom
automates repository creation and access control for teachers
CodeCuriosity.org
platform to reward OSS contributors
Coderwall
Professional network for software engineers
CodeTriage
directory of open-source projects with open issues
Coinfi
crypto market intelligence platform
Concerto
digital signage system
consul
open government and participation software
Convene
digital spaces
Covidlist
connect vaccinations with those who need to be vaccinated
CrimeThinc.com
the app that powers this website
Datoji
easy JSON mocking for developers
datorss.com
RSS search
Decidim
a framework for democracy
Duckrails
tool to mock API endpoints
EasyRaceLapTimer
open-source IR lap time tracker
ebwiki.org
database of police abuse cases against people of color
Ecosystem Dashboard
open-source ecosystem monitoring
Ekylibre
farm management information system
Email Dashboard
email suite for marketing and CRM
Envizon
network visualization and pentest reporting
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
Gem.sh
Beautiful documentation for any RubyGem
getsiteinspector.com
a tool for developers to check their pages
Ghostlight Folio
theatrical production management
Gwaphics
graphic design tool
Hackathon Manager
hackathon registration and logistics
Hackershare
social bookmarking and knowledge-sharing
Haven
self-hostable private blogging
HellRaiser
vulnerability scanner
Helpy
A Modern Helpdesk Alternative
huginn
open-source IFTTT
Human Essentials
management system for essentials banks
icare
carpooling platform
Intercity
web-based Dokku deployment
Juvia
commenting server of the likes of Discus or IntenseDebate
Lale Help
collaborative platform for refugee support
LearnAwesome.org
social network of learners
Listed.to
online publications with automatic newsletters
nindika.com
nintendo switch e-shop
nokul
solution for universities to manage all the complex procedures of a university online
Notebook.ai
structured writing tool
Notebook Gallery
enterprise Jupyter notebook sharing and collaboration platform
Octobox
GitHub notification manager
OpenFoodNetwork
software to manage the lifecycle of food
Open-Source Event Manager
event management tool tailored to conferences
Open Split Time
endurance event data management
Outpost
service directories platform
Pay
payments engine
Pig CI
Rails performance monitoring, plus CI
Plylst
Spotify playlist tool
Podify
make podcasts from youtube-dl
PublicLab.org
collaborative knowledge-exchange platform
Punchclock
simple electronic punch clock
Pupilfirst
everything you need for an online school
Racing On Rails
bike racing association management
RebelsManager
a platform for social good
Recipy.fr
defunct website of a recipe site
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
SmartVPN Billing
billing management for hosting
Snippet Manager
manage your snippets
StockAid
manages inventory for the Grateful Garment Project
sumofus.org
source code to sumofus.org
TagTeam
social tagging for academics
TalentProtocol.com
be your own NFT
TaxonWorks
workbench for biodiversity informatics
Terrastories
geostorytelling
Texterify.com
translation and localization management
TheOdinProject.com
free web development courses
TimeOverflow
time banking system
va.gov
API for va.gov
vglist.co
video game library tracking
visualizer.coffee
visualize hipster coffee machines
weg.li
report bad german parkers
World Cube Association
everything for the World Cube Association
Wreeto
note-taking, knowledge management, and wiki