Apps to End-to-End Encryption

Firefox Send is a secure, free online service from Mozilla for sharing files with end-to-end encryption. It allows users to upload files, protect them with passwords, and set download limits or expiration dates for enhanced privacy and control.

Icedrive is a secure UK-based cloud storage solution emphasizing data privacy and security through client-side encryption. It offers a seamless interface for storing, syncing, and sharing files, with a unique drive-mounting feature for easy access.

Joplin is a free and open-source note-taking and to-do application designed for users who value data ownership, privacy, and flexibility. It offers robust synchronization options, including cloud services like Dropbox, OneDrive, and Nextcloud, as well as WebDAV. With support for Markdown, powerful search capabilities, and cross-platform availability, Joplin is a versatile tool for organizing information and boosting productivity.

GoodSync is a powerful and reliable file synchronization and backup software that automates data transfer and protection. It allows users to sync files between various devices, cloud storage, and FTP/SFTP servers, ensuring data consistency and availability across multiple locations.

GPGMail is a robust extension for Apple Mail, seamlessly integrating OpenPGP encryption and digital signatures directly into your email workflow for enhanced privacy and security.

AutoVer is a robust, lightweight, and highly configurable personal versioning and real-time backup system. It allows users to automatically save copies of their files as they are modified, providing a safety net against accidental deletions, overwrites, or data corruption.

NimbleNotes is a comprehensive note-taking and study tool designed for students and academics. It combines flexible note organization with integrated study aids like flashcards, offering a powerful platform for learning and knowledge management.

Skeduly is a streamlined online scheduling application designed to simplify the process of finding suitable meeting times for groups and individuals. It offers a clean interface and real-time collaboration tools to coordinate schedules effectively without requiring user registration for participants.

Pidgin-Encryption is a plugin for the popular Pidgin instant messaging client that provides transparent, end-to-end encryption for your conversations using RSA.

Stackfield is a comprehensive team collaboration platform designed for businesses requiring high levels of security. It integrates project management, task tracking, document sharing, group chat, and file management, all protected by end-to-end encryption. This ensures sensitive business data remains confidential and secure while enabling seamless team productivity.

Sher.ly offers secure, peer-to-peer based file sharing and synchronization for teams, eliminating reliance on traditional cloud storage for sensitive data.

eduPad is a suite of collaborative, cloud-based writing and note-taking tools with a strong emphasis on real-time collaboration, security, and organizational features. It supports various formats like Markdown and offers advanced features like encryption and version history.

Listango is a powerful online bookmark manager that allows users to store, organize, and access their favorite web pages from any device with an internet connection. It emphasizes privacy, robust organization tools, and seamless multi-device synchronization.

SharedSafe is a comprehensive platform for secure file sharing, storage, and synchronization across various platforms, including FTP, email, Dropbox, and its own cloud.

Cisco WebEx is a comprehensive and secure platform for online meetings, video conferencing, and team collaboration, catering to businesses of all sizes. It offers a wide range of tools to facilitate communication and productivity in a remote or hybrid work environment.

Storj offers decentralized, encrypted cloud storage, leveraging a network of independent storage nodes to provide higher security, privacy, and availability compared to traditional centralized providers. Users benefit from end-to-end encryption and pay-as-you-go pricing.

favattic is a cloud-based online bookmark manager designed for individual and collaborative use, offering features for organizing, sharing, and annotating web content.

FilesAnywhere provides secure cloud storage, file sharing, and collaboration tools for individuals and businesses. It offers robust features like version history, real-time collaboration, document editing, and integrated search, ensuring data accessibility and security across various devices.

eXtrigo is a knowledge-based online community designed for collaborative learning, goal tracking, and skill development. It leverages crowdsourced wisdom to help users organize information, manage personal and shared goals, and connect with others who share similar interests. With robust features like hierarchical note-taking, goal management, and privacy-focused options, eXtrigo serves as both a productivity tool and a social network.

2Shared is a versatile online platform offering file sharing, cloud storage, and backup solutions. It caters to individuals and businesses needing to store, share, and manage various file types with features like encryption, direct uploads, and integration options.

Boxcryptor provides robust end-to-end encryption for your cloud storage services and local files, ensuring your data remains private and secure. It seamlessly integrates with a wide range of cloud providers and offers strong AES-256 encryption to protect your sensitive information from unauthorized access.

Google Allo was a smart messaging app designed for mobile devices, integrating artificial intelligence to enhance conversations with features like canned responses, a built-in photo editor, and enhanced security options.

LinkCollector was a portable bookmark management solution designed to help users organize, manage, and synchronize their bookmarks across different browsers and machines. It offered features like duplicate bookmark detection and organizational tools.

SFTP Net Drive is a sophisticated software application designed to map remote network locations, particularly SFTP servers, FTP servers, and various cloud storage services, as local drives on your Windows operating system. This integration simplifies file management by allowing users to access, edit, and save remote files using standard file explorer operations.

Ricochet is a peer-to-peer instant messaging application designed for maximum privacy and anonymity. It leverages the Tor network to connect users directly, eliminating the need for central servers and reducing metadata leakage.

Join by joaoapps is a cross-device synchronization tool that simplifies interaction between Android devices and PCs, offering seamless file sharing, notification mirroring, clipboard sync, and remote control functionalities for enhanced productivity and connectivity.

Zaclys ownCloud provider offers a robust, hosted ownCloud solution for secure cloud storage, file synchronization, and collaboration. It emphasizes privacy and control over your data, providing a feature set for individuals and organizations to manage files, calendars, and contacts securely online.

GoAruna is a comprehensive file management and cloud storage solution for Android devices. It combines a powerful local file manager with integrated online file hosting, sharing, and synchronization capabilities. GoAruna aims to provide unlimited storage and seamless file access across various platforms.

Phoner and PhonerLite are a pair of free softphone applications designed for Windows operating systems. They enable users to make Voice over IP (VoIP) calls and securely communicate using the Session Initiation Protocol (SIP), with support for end-to-end encryption.

Elephant is a portable, privacy-focused note-taking application featuring a classic, intuitive interface. It supports robust note organization, rich text formatting, markdown, and offline access. With capabilities like image insertion and secure cloud synchronization, Elephant is designed for users needing a reliable and versatile digital notebook.