Xor Cipher Tool
Use Xor Cipher Tool on AboveTool. Hash, encrypt, decode, and sign data in your browser — keys never leave your device. Free, no signup.
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About Xor Cipher Tool
Xor Cipher Tool is used to apply an XOR cipher to text using a key, commonly used in CTF challenges and basic encryption demos. It XORs each byte of the input with the corresponding byte of the key (cycling the key if needed), producing the ciphered output. XOR cipher with a repeated short key is easily broken by frequency analysis — it is educational only, not suitable for real data protection. Xor Cipher Tool runs entirely in your browser at abovetool.com — keys, passwords, and file contents never leave your device.
How to use
- Enter your input text, file, or token in the workspace.
- Choose algorithm or options where available.
- Click the action button — results appear instantly in your browser.
Features
- Web Crypto API where supported
- Keys and plaintext stay on your device
- Hash, encode, JWT, AES, and more
- Free with no account
Frequently asked questions
What is Xor Cipher Tool used for?
Xor Cipher Tool is used to apply an XOR cipher to text using a key, commonly used in CTF challenges and basic encryption demos.
How does Xor Cipher Tool work?
It XORs each byte of the input with the corresponding byte of the key (cycling the key if needed), producing the ciphered output.
Any tips for using this tool?
XOR cipher with a repeated short key is easily broken by frequency analysis — it is educational only, not suitable for real data protection.
Is Xor Cipher Tool free on AboveTool?
Yes. Xor Cipher Tool is free to use on abovetool.com with no account required.
Are my keys or data uploaded to a server?
No. Xor Cipher Tool runs entirely in your browser — keys, passwords, and file contents never leave your device.