- Shaarli : PHP
- Personal, minimalist, super-fast, database free, bookmarking service
- DAViCal : PHP
- Server for calendar sharing
- Radicale : Python
- Simple calendar and contact server
- sabre/dav : PHP
- Most popular WebDAV framework for PHP. Use it to create WebDAV, CalDAV and CardDAV servers
- Xandikos : Python
- Lightweight yet complete CardDAV/CalDAV server that backs onto a Git repository
- GitLab FOSS : Node.js/Ruby
- Open source end-to-end software development platform with built-in version control, issue tracking, code review, CI/CD, and more
- Gitea : Go
- Git with a cup of tea, painless self-hosted Git service
- sourcehut : Python
- Open source software suite for managing your software development projects
- Mailpile : Python
- Free & open modern, fast email client with user-friendly encryption and privacy features
- Roundcube : PHP
- Browser-based multilingual IMAP client with an application-like user interface
- Dovecot : C : retrieve
- Open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind
- OpenSMTPD : C : transfer
- FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extension
- Feedbin : Ruby
- RSS reader with a beautiful reading experience
- FreshRSS : PHP
- Free, self-hostable aggregator
- Miniflux : Go
- Minimalist and opinionated feed reader
- selfoss : PHP
- Multipurpose RSS reader, live stream, mashup, aggregation web application
- Tiny Tiny RSS : PHP
- Open source web-based news feed (RSS/Atom) reader and aggregator
Reference: https://www.devolve.net/self-hosted-open-source-rss-readers/
- wallabag : PHP
- Self hostable application for saving web pages
- DokuWiki : PHP
- Simple to use and highly versatile Open Source wiki software that doesn't require a database
- gitit : Haskell
- Wiki using HAppS, pandoc, and Git
- Gollum : Ruby
- Simple, Git-powered wiki with a sweet API and local frontend
- MediaWiki : PHP
- Free software open source wiki package written in PHP, originally for use on Wikipedia
- Wiki.js : Node.js
- Modern, lightweight and powerful wiki app built on NodeJS, Git and Markdown
Note
Another option would be to pair a static site generator with a :ref:`development platform <development-platforms>`. This wiki uses Sphinx and GitLab, see its .gitlab-ci.yml file.