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Portal is a command-line file transfer utility for sending files and folders between computers. Senders generate a temporary password that receivers use to connect, with transfer occurring directly or through a relay server. It supports end-to-end encryption using PAKE2 and parallel gzip compression.
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.
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.
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 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.
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.
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.
Tuta is a privacy-focused service that provides ad-free secure email, calendar, and contact tools. It uses end-to-end, quantum-resistant encryption to protect user data, offers mobile apps for Android and iOS, and supports custom email domains for professional use.
Tuta Calendar is an encrypted calendar that organizes events with end-to-end encryption and a zero-knowledge architecture. It offers push notifications, two-factor authentication, and sharing of calendars and events. Apps are available for Android, iPhone, and open source desktop clients for Windows, macOS and Linux. It is also integrated with email.
Wormhole is a file-sharing service that lets users share files with end-to-end encryption and a link that automatically expires. The site offers sending up to 10 GB and presents the sharing as simple and private, so shared content does not stay online forever.
Xabber is an open-source XMPP client for Android and the Web, licensed under GPLv3. It supports multiple XMPP accounts, dynamic history loading, media sharing, and end-to-end encryption, with synchronization across connected devices. Xabber for Web runs in any platform with a modern browser.
