Sites like simplex.chat

A project page for Molly, an independent Android fork of the Signal messaging app with added features

Accrescent, an alpha-stage private and secure Android app store with a developer console and documentation

An open source Android app for managing two-step verification tokens, the Aegis Authenticator landing page with privacy policy

Privacy Guides is a non-profit website publishing digital privacy news, recommendations, and how-to guides for consumers and technology users

Organic Maps is a free, open-source offline maps and GPS navigation app for hiking, cycling and driving

Techlore, a privacy and digital surveillance blog and newsletter on owning your online life, by an independent creator

coolLabs is a self-funded company building free open-source developer tools such as Coolify, led by founder Andras Bacsai

A security-focused, compartmentalizing desktop operating system based on Xen, with project news, hardware compatibility list and documentation

Matrix.org, the home of an open, decentralised network for secure chat and communication, run by the Matrix project

F-Droid is an app store and distribution platform for free and open source Android apps

Cheogram is a messaging service that connects telephone SMS and open chat networks such as XMPP and Matrix into one app

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

A GNU/Linux distribution based on Debian for running on Android phones, with a development blog on progress

A free, open-source Android-based mobile operating system for various devices, with release changelogs and news from its team

Berty, a Paris nonprofit building open source peer-to-peer encrypted messaging software without centralized servers or phone-number requirements

e Foundation, a nonprofit building open source, privacy-focused deGoogled smartphone operating systems and online cloud services

Personal web page of Justine Tunney, a software engineer writing on portable executables, llamafile, AI and programming tools

Gajim, a free desktop chat app for the XMPP messaging protocol, with synchronized chats across devices

Jannis Mattheis's personal site: a Berlin software engineer's blog and open-source projects, with self-hosting and privacy tutorials

ForgeFed, a federation protocol for software forges and code collaboration tools, with a blog by Pere Lev on its development

A browser extension called LocalCDN that emulates content delivery networks locally to improve online privacy

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

Joplin, an open source note-taking app with multimedia notes, web clipping and end-to-end encrypted sync, developed by Laurent

The official website of Thunderbird, a free open-source desktop and mobile email, calendar and contacts app

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

Neat.Computer, a small hosting service offering accounts for LibreTranslate, PixelFed and WordPress blogs, with several services still coming soon

Personal portfolio of Imran R featuring a homelab infrastructure-as-code setup, Kubernetes and Docker Compose projects, and the Obtainium Android app

IzzyOnDroid is an F-Droid-compatible repository distributing free, open-source Android apps, with safety scan results published

Pi-hole, a network-wide ad-blocking DNS server software project with installation guides and donation pages

Tasks.org: documentation and product pages for Tasks, a free open-source Android task management app with CalDAV sync

BleachBit, an open-source disk cleaner and file shredder for Windows and Linux systems, with its help and documentation pages

The Tor Project's website, a nonprofit's home page for the Tor anonymity network, its browser and privacy-protection software

Dyne.org, a digital community and free software foundry blog covering open-source tools, art, ecology and decentralized networks, by Dyne.org

A tool tracking Raspberry Pi computer stock across online vendors, built by a hobbyist maker who automates his own tasks

Syncthing, an open-source continuous file synchronisation tool, with project donation and foundation information pages

Nitter, a free alternative front-end for browsing X (formerly Twitter) without an account, run by its maintainer Wooji

Chen's personal blog and portfolio on web, app and game development, with tutorials on Homebrew, Godot and Astro

Oh My Posh documentation for a cross-shell prompt theme engine that customizes terminal prompts, with installation and configuration guides

Lemmy is a free, open-source, decentralised discussion platform with threaded comments, run by its communities and self-hosted servers

LURK, a community server offering mailing lists, IRC chat, Fediverse access and a wiki documenting its setup

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