Zero-Knowledge Secret Note Generator
Ephemeral100% In-BrowserCreate self-destructing encrypted notes. AES-256-GCM encryption key is stored in the URL hash fragment (#key=...) which is mathematically never sent to web servers.
Zero-Server URL-Fragment Encryption (Zero Knowledge)
In HTTP architecture, URL hash fragments (#secret=...) are never transmitted to any web server. Your secret stays 100% in-browser.
If left blank, a random 256-bit AES key will be embedded into the URL fragment. If set, recipient will also need this passphrase.
Zero-Knowledge Ephemeral Secret Note & Self-Destructing Links
Why we built this: Sending passwords, private keys, or confidential tokens over Slack, email, or chat apps leaves permanent, searchable records in enterprise cloud archives. Traditional "self-destructing note" websites store your plaintext or ciphertexts on their servers. We built a zero-knowledge secret note where the web server never sees the key or the note.
How it works: 1) Type your confidential message and optionally add an extra passphrase. 2) Click Encrypt. Your browser generates a 256-bit AES-GCM key and packages the ciphertext into the URL hash fragment (#secret=...). 3) Share the private link. When opened, the recipient's browser extracts the payload from the URL hash, decrypts it in local memory, and allows 1-click burning.
Under the HTTP/HTTPS standard (RFC 3986), everything following the hash symbol (#) is processed exclusively by the browser and is never transmitted to the host server in HTTP request headers.
Frequently Asked Questions
Everything you need to know about using Zero-Knowledge Secret Note Generator safely and efficiently.
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