fzzt.net 复制粘贴

How it works

Your data is end-to-end encrypted. No one can read it without the password.

01
#42

Create a paste

A random 6-digit ID is generated. You get a private editor page.

02
text hello ■■■ encrypted

Write & encrypt

When you save, your browser generates a random password, derives an AES-256-GCM key from it and the ID, and encrypts your content locally. The raw text never leaves your device.

03
■■ gibberish

Store encrypted

Only the encrypted ciphertext is sent to the server and stored. Even if someone gains access to the database, they see only unreadable gibberish.

04
fzzt.net /42#a8U3kL ■■ encrypted #a8U3kL hello decrypted

Share & decrypt

The share link includes the password in the URL fragment (everything after #). This fragment is never sent to the server — it stays in the receiver's browser. Their browser fetches the encrypted data and decrypts it locally.