DocTransfer: Open-Source, Client-Side Encrypted DocSend Alternative Built on React 19

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Developers have released DocTransfer, a free, open-source document-sharing platform designed as a privacy-focused alternative to paid services like DocSend. Unlike conventional platforms that store files in readable form on cloud servers, DocTransfer encrypts all documents directly in the user's browser using OpenPGP and AES-256-GCM before any data is transmitted. Encryption keys are stored in URL hash fragments and are never sent to the platform's servers, ensuring a zero-knowledge architecture. The tool also features dynamic forensic watermarking to deter unauthorized sharing and supports biometric sign-in via WebAuthn. Built with React 19, TypeScript, and Supabase, the project is publicly available on GitHub and the team is actively seeking community feedback.

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