Secure file sharing built for biologists
BioTransfer was created to solve a real problem in biological research: sharing large files shouldn't be painful. Whether it's a 500MB FASTQ file, a batch of microscopy images, or whole-genome sequencing data, BioTransfer makes it simple, fast, and secure.
Unlike generic file transfer services, BioTransfer understands the needs of biologists. We support metadata tagging (organism, experiment type), batch uploads for multi-file experiments, and generate shareable links that work across institutions — no login required for recipients.
BioTransfer uses a Zero-Knowledge End-to-End Encryption (E2EE) system. Unlike standard "encryption at rest," we never have the keys to your data.
1. Key Generation: A 256-bit AES-GCM key is generated using the browser's native
window.crypto.subtle API.
2. Client-Side Encryption: Files are encrypted in your browser before upload. We only handle encrypted "ciphertext."
3. Fragment-Based Sharing: The key is appended to your share link as a URL Fragment (#). Fragments are never sent to the server in HTTP requests.
4. Atomic Deletion: Files are stored in Cloudflare R2 and purged automatically; data is unrecoverable once deleted.
Result: Even if our infrastructure is fully compromised, your data remains unreadable as we possess neither the plain files nor the decryption keys.
BioTransfer is developed by BioScience Tools, a specialized team passionate about building high-performance infrastructure for the scientific community. We believe that great research deserves great tools.
Explore our full ecosystem →Have questions, feedback, or partnership inquiries? We'd love to hear from you.
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