Open Source Web-based End-to-End Encryptions

Open-source password manager with AES-256 encryption and device sync. Store and access encrypted logins across platforms like iOS and Android.

Free open-source tool offers secure, end-to-end encrypted file and message sharing over local networks across major desktop and mobile operating systems.

Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

A secure collaboration app with end-to-end encryption and interoperability across web, desktop, and mobile. Includes chat, voice, and video calls.

Open-source suite for editing documents, spreadsheets, presentations, forms, and PDF files with co-editing modes, plugin support, AI assistant, and integration across 40+ platforms.

Mullvad is a VPN service that helps keep your online activity, identity, and location private.

An end-to-end encrypted note-taking by Proton. Offline access, unlimited sync across devices, tagging, passcode and biometric security, plus advanced premium privacy features.

Generates, stores, and encrypts two-factor authentication tokens, enables secure backup, offers offline access, multi-device sync, and flexible import/export options.

Open protocol for decentralized, end-to-end encrypted communication supporting instant messaging, VoIP, IoT, data persistence, and silos bridging over federated servers.

End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.

Notesnook is a simple and cross-platform private notes app that keeps your notes organized and synced on your phone, tablet and computer. Take notes, capture ideas, create to-do lists, keep a journal, write your assignments and manage projects, we have got you covered.

Open-source, end-to-end encrypted backup and sharing for photos and videos, with multi-platform sync, original quality, privacy controls, and collaborative albums.

A password manager that ensures identity and password security with rigorous, end-to-end encryption, built by scientists from CERN, and recommended by the United Nations.

Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.

Emphasizes privacy with end-to-end encryption, Proton Drive safely stores, synchronizes, and shares files across devices via web and mobile applications.

Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free.

Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

End-to-end encrypted manager for passwords, aliases, and unique email addresses, offering local data encryption, alias creation, and optional cloud or self-hosting.

Excalidraw is an open-source whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them. Available directly online as a web app and also through CodeSandbox to easily see how the code works, and the app is available for self-hosting.

Windscribe is a desktop application and browser extension that work together to block ads and trackers, restore access to blocked content and help you safeguard your privacy online.

Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.

Send lets you share files with end-to-end encryption and a link that automatically expires. So you can keep what you share private and make sure your stuff doesn’t stay online forever.

Docs in Proton Drive are end-to-end encrypted so your work stays safe from data breaches, online surveillance, and can never be fed into AI models.