📲 2FA AuthenticatorsNL
Aegis Authenticator
Free, open-source two-factor authentication app for Android by Beem Development. Aegis stores all tokens in an AES-256-GCM encrypted vault with optional biometric unlock, supports TOTP and HOTP token types, and allows importing from most other authenticator apps. Available on Google Play and F-Droid.
open-source2faauthenticator
🧑💻 Version Control ServicesDE
Codeberg
Codeberg is a free software development platform for open-source projects from Germany, powered by the open-source forge software Forgejo.
open-sourceversion controldevops
📷 Photo ManagementUS
Ente Photos
Ente Photos is an end-to-end encrypted photo backup and management service for mobile, desktop, web, and self-hosted deployments. It targets privacy-conscious individuals and families who want to store, organize, search, share, and export photos and videos in original quality with features such as background backup, on-device search, albums, public links, and family plans.
open-sourceend-to-end-encryptionprivacy-focused
🏠 Smart HomeDE
FHEM
FHEM is a self-hosted, Perl-based smart-home automation server for users who want to run home automation on their own hardware such as a Raspberry Pi, NAS, or PC. It can automate lights, shutters, heating, and other household devices, log sensor data, and integrate many protocols and services through its built-in web interface, TCP/telnet interfaces, and optional frontends.
open-sourceself-hostedhome-automation
📨 Mail ClientsNL
FairEmail
Fully featured, open source, privacy friendly email app for Android. Developed by Dutch company FairCode B.V., FairEmail works with any email provider via IMAP/POP3/SMTP and supports OpenPGP and S/MIME encryption. No tracking, no ads, no data collection.
open-sourcemail-clientandroid
🌐 BrowserUS
Firefox
Open-source web browser developed by the Mozilla Foundation, a US-based non-profit organization. Firefox prioritizes privacy with built-in tracker blocking, fingerprinting protection, and regular security updates. Available for desktop and mobile platforms.
open-sourcebrowserprivacy
🧑💻 Version Control ServicesUS
Gitea
Open-source self-hosted Git service forked from Gogs in 2016. Provides Git hosting, code review, team collaboration, package registry, and CI/CD. Fully open source under MIT license with active development (53.8k GitHub stars). Can be self-hosted on any infrastructure or used via Gitea Cloud/Enterprise.
open-sourceversion-controldevops
🎮 Game Stores & LaunchersPT
Heroic Games Launcher
Heroic Games Launcher is a free and open-source desktop game launcher for Epic Games Store, GOG, and Amazon Prime Games on Linux, Windows, and macOS.
🗄️ DatabasesFI
MariaDB Server
Community-developed relational database fork created by original MySQL developers. MariaDB's first stable release was published in October 2009, and MariaDB Server remains open source under GPLv2.
open-sourcedatabaserelational-database
📺 Media ServerNL
MistServer
MistServer is a self-hostable, public-domain open-source streaming media toolkit for developers and system integrators. It ingests, processes and redistributes live or on-demand audio and video, supports protocols such as RTMP, RTSP, SRT and WebRTC, and includes a web/API interface, meta-player, transcoding/process hooks, telemetry, access control, clipping/recording and media-aware load-balancing support for custom video platforms, event streaming and private CDNs.
open-sourceself-hostedmedia-server
📅 SchedulingDE
OpenCal
German open-source appointment scheduling platform developed by var-lab IT GmbH in Nuremberg. Licensed under AGPL-3.0, self-hostable via Docker. CalDAV compatible with API-first architecture. Focus on digital sovereignty and avoiding Big Tech lock-in.
open-sourceschedulingappointment
📋 Project ManagementOSS
Redmine
Redmine is a free, self-hostable, open-source project management and issue tracking web application built with Ruby on Rails. It supports multiple projects, role-based access control, issue tracking, Gantt charts and calendars, wiki/forums, time tracking, email notifications, and SCM integrations (Git, SVN, Mercurial, Bazaar), making it suitable for teams that need customizable workflows and full deployment control.
open-sourceself-hostableissue-tracking
🎞️ Video EditingGB
Screenity
Screenity is a browser-based screen recorder and video editor for recording, editing, captioning, and sharing videos.
screen-recordervideo-editorchrome-extension
✉️ Email ServicesCH
SimpleLogin
SimpleLogin is an open-source email aliasing service by Proton that helps users protect their real email address. It lets users create unique aliases for sign-ups, forward messages to existing inboxes, reply or send from aliases, use custom domains and catch-all aliases, enable PGP forwarding, and manage aliases through web, browser extensions and mobile apps. It is best understood as a privacy-focused email alias layer rather than a full hosted mailbox.
open-sourceself-hostedprivacy-focused
📲 2FA AuthenticatorsDE
privacyIDEA Authenticator
German authenticator app by NetKnights that supports HOTP/TOTP tokens (SHA-1, SHA-256, SHA-512), Google-compatible QR enrollment, and push authentication with privacyIDEA Server, including deployments without Firebase. The mobile app is open source under Apache-2.0 and available at no cost for Android and iOS.
open-source2faauthenticator
☁️ Cloud StorageDE
BorgBackup
Open-source deduplicating backup archiver with compression and authenticated encryption. Provides efficient space-efficient storage through content-defined chunking, supports client-side AES-256 encryption (AES-OCB or chacha20-poly1305), and runs on Linux, macOS, BSD, and WSL. Self-hostable with no vendor lock-in.
open-sourcebackupencryption
💬 MessagingGB
Briar
Censorship-resistant peer-to-peer messaging that bypasses centralized servers. Connect via Bluetooth, Wi-Fi or Tor, with privacy built-in.
open-sourcemessaginge2ee
☁️ Cloud StorageDE
Cryptomator
Free and open-source client-side encryption software for cloud storage. Cryptomator encrypts files locally before they are uploaded to any cloud service, ensuring that cloud providers cannot access plaintext data. Uses AES-256 encryption with secure key derivation, available on all major platforms. Developed by German company Skymatic GmbH, with independent security audits and the CeBIT 2016 Innovation Award.
open-sourceencryptioncloud-storage
🛍️ App StoresGB
F-Droid
Community-run free and open-source Android app repository founded in 2010 by Ciaran Gultnieks. Offers reproducible builds, anti-feature labels for apps with ads or tracking, and no account requirement.
open-sourceapp-storeandroid
🌐 BrowserUS
Helium
Helium is a privacy-focused browser built on Chromium, designed to be fast and secure. It offers a clean interface with built-in privacy features like ad and tracker blocking.
open-sourcebrowserprivacy
📦 OtherDE
KitchenOwl
KitchenOwl is a free, open-source grocery list and recipe manager focused on households that want shared shopping lists, meal planning, recipe organization, and expense tracking across mobile, web, and desktop. It supports real-time collaboration and can be fully self-hosted via Docker, making it suitable for privacy-conscious users who want control over their data.
open-sourceself-hostedgrocery-list
👥 Social MediaOSS
Lemmy
Federated link aggregator and discussion platform written in Rust. Lemmy lets communities self-host their own forums that seamlessly interoperate across the Fediverse, offering a corporate-free alternative to centralized social platforms.
open-sourcesocial-mediafederated
👥 Social MediaCA
Loops
Federated short-form video platform designed as an ethical alternative to TikTok. Loops is open-source, ad-free, and built on ActivityPub for federation across the fediverse. Part of the Pixelfed ecosystem.
open-sourcesocial-mediashort-video
✉️ Email ServicesFR
Mailu
Open-source, self-hosted email server with simple Docker deployment, webmail interface and spamfiltering.
open-sourceencryptionprivacy