Lufin

Lufin is a modern self-hosted file-sharing service that provides secure, temporary file sharing with rich client-side features. It offers optional end-to-end encryption, flexible storage backends, and a static frontend optimized for performance.

Key Features

• Optional client-side end-to-end encryption (AES-GCM) with zero-knowledge design
• Support for S3-compatible storage (MinIO, Cloudflare R2) and multiple databases (PostgreSQL, MongoDB, SQLite)
• Rich client-side previews for images, audio, video, PDFs, spreadsheets and archives
• Password protection, delete-after-first-download, and configurable retention rules
• Client-side utilities: EXIF metadata stripping, image compression, archive generation, and automatic renaming
• Fully static frontend built with React and Vite; backend is lightweight and deployable via Docker Compose with automatic HTTPS
• LocalStorage-based link management with import/export and cleanup of expired pages

Use Cases

• Share large files securely between team members or external collaborators with optional password protection
• Temporary public file hosting for event assets, press kits, or media previews with automatic expiration
• Integrate with S3/MinIO object storage for scalable hosting while keeping encryption and access controls on the client side

Limitations and Considerations

• Client-side end-to-end encryption requires JavaScript and will limit server-side processing or embedding unless users opt out of encryption
• Scalability and performance depend on chosen storage backend and database configuration; plan resources accordingly

Lufin is suitable for teams and self-hosting enthusiasts who need a privacy-focused, feature-rich file-sharing platform that integrates with S3-compatible storage and common databases. It emphasizes client-side privacy controls and a lightweight deployment model.