Abalone
data tracking and analytics for conservation efforts
AirCasting
platform for gathering, visualization and sharing of environmental data
Alaveteli
easy FOIA requests for any jurisdiction
Brimir
an email helpdesk
consul
open government and participation software
Cuttlefish
a good-enough SMTP server so you can ditch SMTP providers
Datoji
easy JSON mocking for developers
datorss.com
RSS search
Drug Gene Interaction Database
The Genome Institute's drug gene interaction database
Expertiza
peer-reviews app, supported by the National Science Foundation
Fae CMS
another CMS
Fat Free CRM
a clean, customizable CRM
FleetYards
A Ship Database and Web API based on the official Star Citizen Ship Matrix
fromthepage.com
crowdsource handwritten documents
Hackershare
social bookmarking and knowledge-sharing
Heaven
github flow orchestrator
huginn
open-source IFTTT
iNaturalist.org
social network for nature stuff
Intercity
web-based Dokku deployment
Listed.to
online publications with automatic newsletters
Mastodon
distributed, interconnected microblogging
OneBody
church management software
openSNP
annotate your SNP-set
Open Source Billing
Beautifully Simple Billing Software
planningalerts.org.au
planning alerts for Australians
Pokr
agile estimating and planning
Racing On Rails
bike racing association management
Reservations
equipment loans and reservations software
TimeOverflow
time banking system
tip4commit.com
reward contributors
Trado
simple e-commerce platform for developers
uk-postcodes
postcodes application
WikiEduDashboard
course dashboard system