security

FileSeal

Send. Secure. Forget.

Secure uploads that self-destruct after download

visit FileSeal

// the why

I built FileSeal during the process of buying my house, when lawyers, solicitors, and surveyors kept asking me to email sensitive documents and there was no simple way to do that securely. The architecture is rooted in zero-server-knowledge security: files are encrypted at upload, the server cannot read the contents, and each file deletes itself after one download. It is GDPR-compliant by design, with strong authentication on the Teams tier for organisations handling sensitive transfers at scale.

// who it's for

Anyone who needs to send a sensitive file once and then forget about it: contracts, scans, anything that should not linger on someone else's server.

// what it does

  • End-to-end encrypted uploads: the server cannot read your files
  • Files self-destruct after first download, no residue left on the server
  • Strong authentication on the Teams tier
  • GDPR-compliant by design
  • Free for personal use
  • Teams tier with Stripe billing for organisations

// frequently asked

  • What is FileSeal?
    FileSeal is a privacy-first file transfer tool. You upload a file, share a link, and the file deletes itself once the recipient downloads it.
  • Do I need an account to send a file?
    For personal use, no. FileSeal is designed for one-off transfers with no signup. Teams accounts do require sign-in.
  • What happens after the file is downloaded?
    The file self-destructs after the first download, so there is nothing left on the server to leak or recover later.
  • Can the server read my files?
    No. FileSeal uses zero-server-knowledge security: files are encrypted at upload, decrypted only at download, and deleted after first read. The server never sees the contents.
  • Is there a Teams tier?
    Yes. FileSeal Teams adds shared usage, strong authentication, and Stripe-powered billing for organisations that handle sensitive transfers at scale.

// built by

FileSeal is a project by Ben Huss, an immersive technologist based in Somerset, UK. Founder of Immersi (VR training and 360° storytelling), CTO at Cobble (location-based audio walks), and host of The Immersive Technologist podcast.

// related projects

browse all projects