Alaveteli
easy FOIA requests for any jurisdiction
Amahi
your personal cloud and media server
AppPerf
application and performance monitoring tool
Barong
auth server
Bike Index
the internet's bike registry
Black Candy
self-hosted music streaming server
Coderwall
Professional network for software engineers
Convene
digital spaces
Coyote
image annotation
CrimeThinc.com
the app that powers this website
Danbooru
taggable image board
FederalRegister.gov
daily journal for the United States Government
Feedbin
open-source feed reader for multiple platforms
GitLab
self hosted Git management
Gwaphics
graphic design tool
Hackershare
social bookmarking and knowledge-sharing
Haven
self-hostable private blogging
Hitobito
full-scale group hierarchy management
if-me.org
mental health communication
Juvia
commenting server of the likes of Discus or IntenseDebate
lobsters
link-aggregation site, inspired by Hacker News
nokul
solution for universities to manage all the complex procedures of a university online
OneBody
church management software
Open Build Service
build service for Linux packages
OpenProject
project management system
Organization for Transformative Works Archive
archives of fanworks, including fanfic, fanart, and fan vids
Postal
mail delivery platform for incoming and outgoing e-mail
Racing On Rails
bike racing association management
Recipy.fr
defunct website of a recipe site
sharetribe
Marketplace platform
Splits.io
speedrunning data and analysis
Staytus
status pages
sumofus.org
source code to sumofus.org
TalentProtocol.com
be your own NFT
TaxonWorks
workbench for biodiversity informatics
tip4commit.com
reward contributors
Tracks
software for implementing David Allen's Getting Things Done™ methodology
Wreeto
note-taking, knowledge management, and wiki