SecurityFree Tool

One-Time Pad

Provided byInventive HQinventivehq.com

Theoretically unbreakable cipher with random key generation. XOR encryption with perfect secrecy when used correctly

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Screenshot of One-Time Pad on Inventive HQ
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About this tool

What One-Time Pad does

A concise, one-time pad encryption tool that generates a one-time pad from a passphrase and applies it to your plaintext via XOR operation. Output is provided in hexadecimal format for easy copying and pasting into other tools or communication channels. No data is stored or transmitted to external servers beyond what is necessary for the encryption process, and all processing occurs within your browser for privacy.

Step by step

How to use the Inventive HQ One-Time Pad

  1. 1

    Enter your secret message in the top box.

  2. 2

    Enter a passphrase to use as the key.

  3. 3

    Click "Encrypt" or "Decrypt" to process the text.

  4. 4

    Copy the result from the output box.

Is it right for you

Best for

Quick, one-off encryption of short messages where you need to securely share a secret key with another party via a different channel.

Limitations

  • No persistent storage; data is lost if the page is refreshed.
  • Requires manual copy-paste of results.
  • No built-in file export or decryption outside the browser.
Questions

One-Time Pad FAQ

Can I use this to encrypt large files?
No, this tool is designed for short text strings only. For large files, consider using dedicated encryption software.
Is my data stored or logged?
No, all processing happens locally in your browser. Nothing is sent to a server except what you type.
Do I need to install anything to use this tool?
No. It runs entirely in your browser. No installation required.