Best Zero Knowledge

Tresorit is a Swiss-based, end-to-end encrypted service designed for businesses requiring the highest security standards. It offers zero-knowledge architecture, remote wipe, detailed activity logs, an...

ProtonMail is a Swiss-based email service that offers end-to-end encryption, ensuring that only the sender and recipient can read messages. It also provides secure file sharing, two-factor authenticat...

SpiderOak One is a US-based 'No Knowledge' backup and sync service where all data is encrypted client-side before upload, and the company has zero access to keys or passwords. It emphasizes robust bac...

A privacy-first service from Canada, Sync.com provides zero-knowledge end-to-end encryption on all data by default, not as a paid add-on. It features secure sharing with password protection and expiry...

MEGA offers a standout 20GB free storage tier (with achievements) and robust end-to-end encryption for all users. It includes secure chat with file sharing, a desktop sync client, and a web-based file...

SpiderOak One is a zero-knowledge backup and sync tool with a strong security heritage. It performs continuous or scheduled backups of selected folders across unlimited devices, with no file size limi...

Icedrive is a newer contender with a sleek interface and a unique approach: it uses the Twofish encryption algorithm and can mount as a virtual drive on Windows for direct file access. It offers zero-...

Dashlane Enterprise offers zero-knowledge encryption and advanced team management tools. It is designed to handle large-scale deployments with features like centralized policy management, making it su...

NordLocker, from the team behind NordVPN, is an encryption tool with secure cloud backup. It first encrypts files locally using zero-knowledge cryptography before optionally uploading them to Nord's c...

Filen is a German-based, end-to-end encrypted cloud service with open-source desktop clients, ensuring transparency. It offers a zero-knowledge architecture by default on all plans, including a free 1...

Internxt is an open-source, decentralized cloud service built on blockchain technology for enhanced security and privacy. It uses zero-knowledge encryption and shards files across a distributed networ...

KeepassXC is a free, open-source password manager that supports cross-platform use. It securely stores and manages login credentials, passwords, and other sensitive information using strong encryption...

SpiderOak offers zero-knowledge encryption and end-to-end security, ensuring that files are protected from prying eyes. It supports Windows, macOS, Android, iOS, and Linux, with a focus on user privac...