Secure Secure Notes Tool – Online secure notes Tool
Encrypt and secure text notes with a password.
Store and Share Secrets Securely
Whether you need to send a password to a colleague or store sensitive information in a non-secure place, our Secure Notes tool provides a robust solution. By encrypting your text with AES-256, you ensure that even if the encrypted string is intercepted, it remains completely unreadable without your chosen password.
Zero-Knowledge Encryption
We follow a "Zero-Knowledge" philosophy. The encryption process happens entirely within your browser's memory. Your unencrypted notes and your passwords never leave your device. This means that not even the operators of metatool.in can access your data.
How to Use Secure Notes
- Select "New Secure Note".
- Write your sensitive message and choose a strong password.
- Click "Encrypt & Secure" to generate the encrypted blob.
- Send the blob to your recipient through any channel. They can use the "Unlock Note" mode on this same page to read it.
Frequently Asked Questions
Your note is encrypted using the AES-256 standard with the password you provide. The result is a Base64 string that can only be unlocked with that exact password.
No. The encryption and decryption happen entirely in your browser. We never see your note, your password, or the encrypted result.
The note will be permanently inaccessible. AES-256 is strong encryption, and there are no backdoors to recover your data.
Related Free Tools
- AES Encrypt/Decrypt — Encrypt and decrypt text using AES-256-CBC algorithm.
- Secret Sharing — Split secrets into multiple parts using Shamir's scheme.