Lockr

Lockr is a file transfer service that achieves high security, yet with simple operations. You no longer need to encrypt your file before sending it. End-to-end encryption (E2EE) In many conventional file transfer services, there are points where files are handled without being encrypted, so there is a risk of information leaking from inside the operator or by hacking. Lockr encrypts the file in the sender's browser with AES-256 before sending it to the server, and decrypts it in the recipient's browser. The encryption key is never sent to the server, so even we operators cannot know the contents of the file. In addition to the contents of the file, metadata such as the file name is also subject to encryption. The only thing we can know is the approximate file size. Double encryption Data encrypted on the client side is encrypted again on the server side with AES-256. The encryption key is generated for each upload and discarded when the file is deleted. For this reason, once a file is deleted, the original data cannot be retrieved even if the deleted file can be restored. 50GB for free To support WFH, up to 50GB per user is provided for free of charge for a limited time.