Abalone
data tracking and analytics for conservation efforts
adopt-a-hydrant
adopt-a-hydrant software
AgileVentures
source code to agileventures.org
Airesis
eDemocracy
Alaveteli
easy FOIA requests for any jurisdiction
alonetone
home for musicians, their tracks and albums
Amahi
your personal cloud and media server
AppPerf
application and performance monitoring tool
Autolab
course management and auto-grading of assignments
BareMetrics.com
v1 of baremtrics.com
Bike Index
the internet's bike registry
Brainstormer.online
collaborative brainstorming
brief-ideas
journal for brief ideas
Brimir
an email helpdesk
Case File Editor
editor for digital case files
Catarse
open-source crowdfunding platform
Central
Fulcrum project planning tool fork
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
Concerto
digital signage system
Covidlist
connect vaccinations with those who need to be vaccinated
Coyote
image annotation
Cuttlefish
a good-enough SMTP server so you can ditch SMTP providers
Datoji
easy JSON mocking for developers
Do Continuous Integration Yourself
open-source CI server
Droptune
music notifications for Spotify and Apple Music
Drug Gene Interaction Database
The Genome Institute's drug gene interaction database
Duckrails
tool to mock API endpoints
EasyRaceLapTimer
open-source IR lap time tracker
Email Dashboard
email suite for marketing and CRM
Envizon
network visualization and pentest reporting
Errbit
open source, self-hosted error catcher
Expertiza
peer-reviews app, supported by the National Science Foundation
Fairmondo
free market place in the hand of the users
FederalRegister.gov
daily journal for the United States Government
Feedbin
open-source feed reader for multiple platforms
FeedBunch
simple and elegant reader
FleetYards
A Ship Database and Web API based on the official Star Citizen Ship Matrix
Ghostlight Folio
theatrical production management
Gwaphics
graphic design tool
Hackathon Manager
hackathon registration and logistics
Haven
self-hostable private blogging
HellRaiser
vulnerability scanner
Helpful
simple and elegant support system
Helpy
A Modern Helpdesk Alternative
Hours
Time registration that doesn't suck.
Huboard.com
better GitHub issues
huginn
open-source IFTTT
Human Essentials
management system for essentials banks
if-me.org
mental health communication
iNaturalist.org
social network for nature stuff
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
Lewsnetter
email marketing application
Listed.to
online publications with automatic newsletters
Loomio
make decisions together
Morph.io
web scraping tool
Notebook.ai
structured writing tool
Notebook Gallery
enterprise Jupyter notebook sharing and collaboration platform
OneBody
church management software
OpenFarm
open database for farming and gardening knowledge
openSNP
annotate your SNP-set
Open Source Billing
Beautifully Simple Billing Software
Open-Source Event Manager
event management tool tailored to conferences
OpenSourceRails.org
the codebase to this site
Outpost
service directories platform
Pig CI
Rails performance monitoring, plus CI
planningalerts.org.au
planning alerts for Australians
Plylst
Spotify playlist tool
Podify
make podcasts from youtube-dl
Pokr
agile estimating and planning
Postal
mail delivery platform for incoming and outgoing e-mail
Racing On Rails
bike racing association management
RebelsManager
a platform for social good
Registry
TLD management software
Reservations
equipment loans and reservations software
rubytoolbox.com
catalog of all Rubygems that keeps track of popularity and health metrics
samson
Web interface for deployments
Sanataro
household accounting software
sharetribe
Marketplace platform
SmartVPN Billing
billing management for hosting
Squash
exception reporting and bug analysis by Square
Staytus
status pages
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
Texterify.com
translation and localization management
TheOdinProject.com
free web development courses
tip4commit.com
reward contributors
Trado
simple e-commerce platform for developers
uk-postcodes
postcodes application
weg.li
report bad german parkers
World Cube Association
everything for the World Cube Association
Wreeto
note-taking, knowledge management, and wiki