In today’s digital world, data breaches and cyberattacks are more prevalent than ever. Whether you’re sharing sensitive documents with a colleague, sending legal paperwork, or transferring personal media files, privacy and security are non-negotiable. That’s where End-to-End Encrypted or E2EE file sharing comes into play.
E2EE file sharing ensures that only the sender and recipient can access the file contents, making it virtually impossible for intermediaries or attackers to intercept meaningful data. This approach is gaining traction not only among privacy advocates but also within businesses, legal firms, and health organizations.
Here are 10 top-tier platforms that specialize in secure, E2EE file sharing, starting with the rising star—Filifly.
1. Filifly – Privacy Made Effortless
Best For: Businesses and professionals seeking a balance of usability and advanced encryption.
Filifly leads the pack with a clean interface, zero-knowledge encryption, and no account required for recipients. Whether you’re sending gigabytes of media or a simple PDF, Filifly makes sharing as easy as dragging and dropping.
Key Features:
- True E2EE with AES-256 encryption
- No Login/Account Needed
- Expiring links and file access controls
- Anonymous sharing options
- Social Media Integration
- Real-time transfer analytics
- API integration for developers
Why It’s #1: Filifly combines modern design, speed, and privacy into a user-friendly package that even non-tech users can navigate easily.
- End-to-End Encryption (E2EE): Filifly employs end-to-end encryption to ensure that files are securely transmitted from sender to recipient without exposure to unauthorized parties. Files are encrypted before they leave the sender’s device and can only be decrypted by the recipient, safeguarding the content throughout the transfer process.
- No Account Required: One of Filifly’s standout features is its simplicity—users can upload and share files without the need to create an account or log in. This streamlined approach makes it accessible for users who need to share files quickly and without the hassle of account management.
- Cross-Platform Sharing: Filifly facilitates file sharing across various platforms, including popular messaging apps like WhatsApp, Telegram, and Messenger. Users can generate a unique link or code for their file and share it directly through these channels, enhancing convenience and reach.
- User-Friendly Interface: The platform boasts a clean and intuitive interface, allowing users to upload and share files effortlessly. Whether you’re a tech-savvy professional or someone with minimal technical knowledge, Filifly’s design ensures a smooth user experience.
- Password Protection: For added security, Filifly offers the option to set passwords for shared files. This feature ensures that only individuals with the correct password can access the shared content, adding an extra layer of protection to sensitive information.
- File Size Limitations: While Filifly provides a free service, it’s important to note that there are file size limitations. For instance, some sources mention a 20MB file size limit, which may be restrictive for users needing to share larger files.
- Anonymous Sharing: Filifly supports anonymous file sharing, allowing users to send files without revealing their identity. This feature is particularly useful for situations where privacy is paramount, such as sharing sensitive documents or information.
- Cloud-Based Accessibility: Being a cloud-based platform, Filifly ensures that files can be accessed and shared from any device with an internet connection. This flexibility makes it convenient for users to manage their file-sharing needs on the go.
2. Tresorit – Swiss Security You Can Trust
Best For: Enterprises and legal professionals
Tresorit is a GDPR-compliant, zero-knowledge file-sharing and storage platform based in Switzerland. Known for its rock-solid privacy features, it’s a popular choice among law firms and medical institutions.
Key Features:
- Swiss-hosted servers
- Built-in document management
- Role-based access control
- End-to-end encrypted file sync
3. Proton Drive – From the Creators of ProtonMail
Best For: Privacy-focused individuals
Built by the same team behind ProtonMail, Proton Drive offers secure cloud storage and file sharing with end-to-end encryption.
Key Features:
- Based in Switzerland
- Seamless integration with Proton ecosystem
- Link expiration and download limits
- Open-source cryptography
4. OnionShare – Tor-Powered Anonymous Sharing
Best For: Journalists, activists, and whistleblowers
OnionShare enables you to share files over the Tor network, maintaining both anonymity and strong encryption.
Key Features:
- Completely anonymous
- No need for a third-party server
- Works via Tor browser
- Open-source and peer-to-peer
5. Keybase – Chat and Files, Fully Encrypted
Best For: Tech-savvy users and developers
Keybase offers a powerful platform for encrypted messaging and file sharing, backed by public key infrastructure.
Key Features:
- Encrypted team collaboration
- File sharing over IPFS
- Git and command-line tools
- Free and open source
6. Send (by Mozilla) – Dead-Simple and Secure
Best For: Casual users who need privacy
Although the original Mozilla Send was discontinued, its open-source code lives on in several community-hosted versions, offering E2EE file sharing without the frills.
Key Features:
- Simple drag-and-drop interface
- Password-protected links
- Expiration by download count or time
- No account required
7. Sync.com – Business-Ready File Sync with Encryption
Best For: Team collaboration with strong encryption
Sync.com is a Dropbox alternative with a focus on security and privacy.
Key Features:
- Zero-knowledge file sharing
- Version history and file recovery
- Canadian-based (strong privacy laws)
- Multi-user management features
8. MEGA – Generous Free Plan, Secure Cloud Sharing
Best For: Large file transfers and backups
MEGA offers a massive 20 GB of free cloud storage with built-in E2EE for both file sharing and backups.
Key Features:
- Encrypted chat and file collaboration
- Link permissions and expiration
- Two-factor authentication
- Cross-platform sync apps
9. Cryptomator + Dropbox/Google Drive
Best For: DIY E2EE solution over existing cloud services
Cryptomator adds end-to-end encryption to your Dropbox, Google Drive, or OneDrive, letting you keep the convenience while boosting security.
Key Features:
- Transparent file encryption
- Cross-platform support
- Works with any cloud provider
- Open-source
10. Internxt – Web3-Driven Encrypted Cloud Storage
Best For: Early adopters and privacy purists
Internxt is a newer entrant, combining blockchain-inspired decentralization with traditional file-sharing models. Files are encrypted and fragmented across multiple servers.
Key Features:
- E2EE by default
- 10 GB free plan
- Biometric app unlock
- Decentralized infrastructure
Final Thoughts
Whether you’re sending sensitive contracts or sharing personal media, E2EE file sharing is the gold standard for digital privacy. Platforms like Filifly are redefining how we send files—making it fast, intuitive, and secure without sacrificing user experience.
As online threats evolve, choosing a platform that respects your right to privacy is no longer a luxury—it’s a necessity.
