Hakanai embodies Japan's concept of "fleeting"-secrets only exist for a moment and then disappear forever. No account required, no tracking required, no permanent storage required. Only instantaneous data transfers with mathematical privacy guarantees and automatic invalidation. core principles Zero knowledge: The server will never see your data. All encryption is done on the client side. Single view: Secrets self-destruct after one visit. There is no second chance. No metadata included: We only store encrypted bytes and an ID. Other than that, nothing remains. Minimalism: There is only one function-sharing secrets that will disappear. Content integrity: Hash verification ensures that secrets have not been tampered with. working principle Your client (command-line interface or browser) encrypts secrets locally. Send only ciphertext to our server You share the link with the decryption key (embedded in the URL or provided separately) The recipient checks it once and it will disappear forever
