Security Features
End-to-end encrypted using AES-256. The encryption key is in the URL and never sent to our servers.
Your note will be encrypted in your browser before storing
Recipient will need this password to view the note
How It Works
- Your note is encrypted in your browser
- Only encrypted data is stored on our server
- The decryption key is in the URL you share
- Note is deleted after viewing or expiration
How to Share a Secure Note
- 1
Write Your Message
Type or paste the sensitive information you want to share into the note field. This can be a password, API key, private message, or any confidential text. Everything stays in your browser until you encrypt it. - 2
Set Expiration and Security Options
Choose how long the note should remain accessible, from 5 minutes to 7 days. Enable burn after reading if you want the note destroyed immediately after the first view. Add an optional password for an extra layer of protection. - 3
Generate the Encrypted Link
Click Create Secure Note. Your browser encrypts the message using AES-256-GCM before anything leaves your device. You receive a unique link containing the decryption key in the URL fragment, which is never sent to the server. - 4
Share the Link with Your Recipient
Copy the generated link and send it to your recipient through your preferred channel. If you added a password, share it separately via a different communication method such as a phone call or a different messaging app.
Common Use Cases
Sharing Login Credentials
Sending Confidential Business Information
One-Time Verification Codes
Personal Private Messages
Why Use Secure Note Sharing?
Secure Note Sharing lets you transmit sensitive information without leaving a permanent trail. Traditional communication channels like email, Slack, and SMS store messages on servers indefinitely, creating a growing attack surface for data breaches. This tool solves that problem by encrypting your message in the browser using AES-256-GCM before anything is transmitted. The decryption key lives only in the URL fragment, which browsers never send to the server, ensuring true zero-knowledge encryption.
Unlike cloud-based messaging platforms, secure self-destructing notes give you full control over the lifecycle of your information. You set the expiration window and choose whether the note is destroyed after a single viewing. There is no account to create, no app to install, and no metadata stored about your session. For teams that need to share credentials, the combination of password protection and automatic expiration makes this a practical alternative to insecure practices like pasting passwords directly into chat. If you need to generate a strong password first, use the Password Generator.
For additional layers of security, consider encrypting your message with the PGP Encryption Tool before creating the note, or use the Text Encryption tool for symmetric encryption. You can verify the strength of any passwords you share by running them through the Password Strength Checker. Together, these tools form a comprehensive privacy workflow that keeps your sensitive data protected from end to end.
How It Compares
Several services offer encrypted note sharing, but most require account registration, display advertising, or process data on their servers. FindUtils Secure Note Sharing performs all encryption client-side in your browser, so the plaintext of your message never touches a remote server. There are no usage limits, no signup requirements, and no ads. Paid alternatives like 1Password's secure sharing or Bitwarden Send offer similar features but require subscriptions and accounts. Free competitors often cap message length, limit expiration options, or inject tracking scripts.
Compared to using encrypted email or PGP directly, this tool removes the setup barrier entirely. PGP requires both parties to manage key pairs and understand public-key cryptography. Secure Note Sharing distills that complexity into a single link. The trade-off is that the link itself becomes the secret, so it must be shared through a trusted channel. For workflows that demand end-to-end PGP-level security with key verification, use the dedicated PGP Encryption Tool instead.