About Wisp
A fast, account-free way to send files using a simple code, built by TwoBits.
Built for simple sharing
Choose files, choose an expiry, and share the generated code. The recipient enters that code to retrieve the transfer—no account, inbox, or sign-up flow required.
Privacy by design
Wisp encrypts files on the sender’s device before they are uploaded. Recipients decrypt files on their own device after downloading. The server stores the encrypted transfer data needed to make the exchange work.
Transfers that clean up
Every transfer has an expiration time. You can also choose a one-time download, which removes the stored encrypted transfer once it has been downloaded successfully.
Use it thoughtfully
Keep a copy of anything important before sharing it. Only share transfer codes with intended recipients, and make sure you have permission to send every file you upload.
Wisp is designed to make sharing feel lightweight while keeping control in the hands of the people sending and receiving files.