Sites like linkstack.org

CryptPad, an open-source end-to-end encrypted office suite for real-time collaborative documents, spreadsheets, slides and whiteboards, developed by XWiki SAS

Personal blog and project site by Leo Spratt on self-hosting, tech tools, photography and his music as Spectral Nova

A web tool where users create, share and manage their pronoun profiles, open source, in beta

SimpleX Chat: a private messenger app and network with no user identifiers, developed by the SimpleX team

A German-language collection of open-source software services run by a private individual, ad-free and funded by donations

Open QuarterMaster is an open source inventory management software project with a demo instance and merchandise shop

UnifiedPush is an open-source, decentralized push notification system letting app developers and users choose their own notification service

SnapOtter is a self-hosted file processing tool for private image and document workflows, with pages in Spanish, Hindi and Indonesian

Open-source software for streaming your own music library from a self-hosted server, with apps and downloads

BeryJu.io is a personal technical blog by Jens Langhammer covering homelab setups, self-hosted infrastructure, networking experiments and GitLab CI tips

An Italian social network server on Mastodon, hosting user profiles and public posts from Italian-speaking members

DockSTARTer is a tool and documentation site by its developers for quickly setting up Docker and self-hosted applications on Linux systems

Alf.io, an open source event ticketing and attendance management system for organizers, with documentation and community pages

A German personal site by Andreas Itzchak Rehberg on Android books and coaching, plus Oracle database administration tips and services

Swing Music, a self-hosted music streaming server and player for your own audio files, with documentation and downloads

Kresus, a free self-hosted personal finance manager that syncs bank transactions, categorizes them and builds budgets, with documentation and a demo

PinePods is a self-hosted podcast management app built with Rust, with a blog covering its development

A self-hosted, open-source bookmark archive tool called LinkAce, built and documented by its developer, for saving and organizing web links

Leantime, an open source project management software for teams, with a mobile app in beta

Peergos is an open-source encrypted cloud storage service and drive, with its own client and server software

Atheos Cloud IDE, a lightweight web-based code editor framework built on Codiad, with documentation on setup and interface

A Milan-based volunteer nonprofit running Italian fediverse social servers and the Mastodon.uno instance, with an Italian-language site

PufferPanel, an open source web panel for installing and managing game servers such as Minecraft and Source dedicated servers

Spliit, a free open source web and iPhone app for splitting shared expenses and group balances among friends and family

Kavita, a self-hosted digital library server for EPUB, PDF, comic and manga reading with built-in readers

A social network instance on Friendica run as a political project, with a support forum, in Italian

PIKIMOV, a free browser-based motion design and video editor alternative to After Effects and CapCut, with tutorials and demos

A social network for tracking reading, discussing books and writing reviews, built on federated ActivityPub servers

Kill Bill, an open-source billing and payments platform for subscription businesses, offered as managed infrastructure at a fixed price

Stump is an open source, self-hostable media server for ebooks, comic books and manga, with web, desktop and mobile apps

Octobox, a web tool for managing and filtering GitHub notifications, with a free tier for open source projects

Linkwarden, an open source bookmark manager for saving, annotating and preserving web pages, with apps and a browser extension

A web service that mirrors public Twitter accounts into the fediverse via ActivityPub, made by Vincent Cloutier

Nextcloud, an open source self-hosted platform for file sharing and online collaboration as a Microsoft 365 alternative

Komga, an open-source media server for digital comic and manga libraries, with documentation and blog posts by developer gotson