XOR Encrypt Decrypt
Apply a repeating-key XOR cipher to text or hex input. Encrypt and decrypt in the browser with UTF-8, hex, or Base64 output.
Repeating-key XOR cipher in the browser
XOR every byte of your input with a repeating secret key. The same operation decrypts ciphertext, which makes XOR useful for quick obfuscation, CTF puzzles, and understanding symmetric stream ciphers.
Related tools: Encrypt Decrypt, Binary Bitwise XOR, and Text to Hex Converter.
Frequently Asked Questions
Is XOR encryption secure for production?
No. A repeating-key XOR is easy to break and should not protect real secrets. Use AES or another modern cipher for production data.
How do I decrypt?
Run the tool again with the same key. Paste the ciphertext, match the input format (text, hex, or Base64), and choose the output format you need.
Are keys or messages sent to a server?
No. XOR runs entirely in your browser; nothing is uploaded.
Related Tools
Plist to PHP Array Converter
Stripe Fee Calculator
Quantum Number Calculator
Atbash Cipher
Degree of Operating Leverage Calculator
Injury Severity Score Calculator
Random Email Generator
Find Longest Line
GDP Calculator
Car Depreciation Calculator
Child Tax Credit Calculator
DIC Syndrome Calculator
Rectangular Pyramid Volume Calculator
Percent Difference Calculator
Fluid Pressure Calculator
UTF8 Converter
Generic Rectangle Calculator
RSA Sign Verify
Pig Latin Translator
Resolution Scale Calculator