posteo.de
Independent, ad-free email, calendar, and address-book service based in Germany, with privacy-focused account and encryption options.
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priductive.com
ProductivePrivacy is a curated directory of privacy-focused applications and tools. It lists software that prioritizes data security, is open-source, or offers end-to-end encryption, including note-taking apps, collaborative editors, database tools and other productivity software. Users can filter and sort the listed applications by category and other attributes.
profanity-im.github.io
Profanity is a console-based XMPP client written in C using ncurses and libstrophe, inspired by Irssi. It is available on Linux, FreeBSD, OpenBSD, OSX, Windows and Android via Termux. The client supports XMPP chat services, MUC chat rooms, roster management, encryption with OTR, PGP and OMEMO, and plugins written in Python and C.
quad9.net
Quad9 is a free public recursive DNS service operated by the Swiss-based Quad9 Foundation. It replaces a default ISP or enterprise DNS configuration and blocks lookups of malicious host names from a threat list, aiming to protect devices against malware, phishing, spyware and botnets. Service addresses support malware blocking and DNSSEC validation, with optional encryption via HTTPS and TLS.
github.com
quickdrop is an easy-to-use file sharing application. It allows users to upload files without creating an account, generate download links for shared files, and manage file availability. It also includes file encryption and optional password protection.
radmin-vpn.com
Radmin VPN is free software that creates virtual local networks, connecting computers located behind firewalls into one network. It is compatible with Windows 11, 10, 8 and 7, and offers a secure tunnel with 256-bit AES encryption. It can be used to connect distributed teams, work remotely, and play LAN games over the Internet.
objective-see.org
RansomWhere? is a macOS utility that analyzes file entropy to identify encryption activity and detect untrusted processes creating encrypted files. It suspends suspect processes and alerts the user, who can allow or block them. It runs on macOS 10.15 and later.
remotly.com
Remotly is remote desktop software for connecting to computers, with encoding, encryption and access control features. The site lists Pro, Admin, Support and Ultra-High Quality plans alongside a free option, with prices per user per month.
riseup.net
RiseupVPN is a personal VPN client offered by Riseup for censorship circumvention, location anonymization and traffic encryption. It routes internet traffic through an encrypted connection to riseup.net and, unlike most VPN providers, does not log IP addresses. The client requires no configuration or account registration and is available for GNU/Linux, macOS, Windows and Android. The service is funded entirely through donations.
roundcube.net
Roundcube is free and open source webmail software written in PHP. It is a browser-based multilingual IMAP client with a desktop-like interface offering drag-and-drop message management, MIME and HTML support, address book with groups and LDAP connectors, threaded message listing, spell checking, shared IMAP folders and a plugin API. It supports PGP encryption and is released under the GNU General Public License version 3 or later.
scrt.link
A service for sharing text, files and redirects through links that are end-to-end encrypted and destroyed after viewing. The encryption key is part of the link and is never sent to the server. An API for text-based secrets requires an active subscription. Free plan available; paid plans billed annually.
seafile.com
Seafile is an open source, self-hosted file sync and share solution. It offers granular sharing permissions, multi-level file tagging, and built-in collaborative docs and wiki. The software supports access from any device and includes encryption and audit logs.
gitlab.gnome.org
Seahorse is a password and encryption key manager for GNOME. It manages passwords and keys, including PGP, GPG and SSH keys. The project is developed in the GNOME GitLab group under a GNU General Public License v2.0 or later.
wiki.archlinux.org
An ArchWiki page describing how to securely wipe a disk by writing new data over every bit. It covers common uses such as wiping all data before a device is given away or sold, and preparing a drive for block device encryption using random data.
github.com
Nextcloud Server is self-hosted software for storing files, contacts and calendars on a server of the user's choosing. It synchronizes data among devices and allows sharing with others for access or collaboration. It is expandable with hundreds of apps and offers encryption mechanisms and two-factor authentication.
github.com
sharrr-svelte helps share or store files with encryption, access control, or privacy-focused transfer features.
github.com
SilentNotes is a simple note taking app that respects privacy. Notes can be synchronized between Android and Windows devices, and the app uses end-to-end encryption to protect notes. It offers a WYSIWYG editor, to-do lists, password protection, full-text search, tagging and storage on self-hosted online storage.
sshx.io
sshx is a web-based collaborative terminal that lets users share a terminal with others by link on a multiplayer infinite canvas. It offers real-time collaboration with remote cursors and chat, end-to-end encryption, and a lightweight server written in Rust. It is available as a command-line tool for macOS, Linux and Windows.
standardnotes.com
Standard Notes is a note-taking app that protects notes and files with end-to-end encryption, offering sync across devices and Markdown and rich text note types. The site describes an offline copy of data and note history and backups. It states the app is free with unlimited notes and devices.
stashr.wtf
Stashr is a file-sharing service for uploading and sharing files up to 1GB without an account. It offers client-side AES-256 encryption, optional password protection, download limits and auto-expiration. Files can be uploaded individually or in folders that are zipped automatically, and shared links include QR codes.
stingle.org
Stingle Photos is a gallery and camera application with backup and sync for photos and videos. Files are encrypted before being stored or backed up. The open source software is released under the GPLv3 license and uses Libsodium as its encryption backbone. Registration requires only an email and password, and each account includes 1 GB of free cloud storage.
tangoshare.com
TangoShare is a browser-based tool for sharing files peer-to-peer with end-to-end encryption. Files are transferred directly between devices and do not touch servers, with no size limits and no registration required. Users create a room and share the link or QR code with up to 9 other people. An Android app offers Remote Mode over the internet and Local Mode on the same Wi-Fi network or hotspot.
tigervnc.org
TigerVNC is a platform-neutral implementation of VNC, a client/server application for launching and interacting with graphical applications on remote machines. It provides performance intended for 3D and video applications and extensions for advanced authentication methods and TLS encryption. Binaries are offered for Linux, Windows and Macs, and it is included in several distributions.
tinc-vpn.org
tinc is a Virtual Private Network daemon that uses tunnelling and encryption to create a secure private network between hosts on the Internet. It is Free Software under the GNU General Public License version 2 or later, offering optional compression, automatic full mesh routing, NAT traversal, and support for IPv6.