What is a XOR Cipher?

This tool uses a XOR cipher as a demonstration. Each character in your text gets combined with a character from the password using the XOR (exclusive OR) logical operation, and the same process runs in reverse to decrypt. It's one of the oldest and simplest cipher mechanisms there is.

The output gets Base64 encoded so it comes out as a printable string you can actually copy and share.

Important Security Warning

This tool is for educational and demonstrative purposes ONLY. The XOR cipher used here is NOT cryptographically secure. It's obfuscation, not real encryption.

• Don't put anything sensitive through here — no passwords, credit card numbers, private messages, or anything you'd actually care about protecting.
• It's easily broken with basic cryptanalysis, especially if the password (key) is short or you reuse it across multiple messages.
• If you need real encryption, use AES (Advanced Encryption Standard). It's available directly in the browser through the Web Crypto API, or through libraries like CryptoJS. That's the right tool for anything that matters.

Why Is This Still a Useful Tool?

It's not secure, but there are still legitimate reasons to reach for it:

• It gives you a hands-on feel for how XOR-based encryption actually works — seeing it happen in real time makes the concept click in a way that reading about it doesn't.
• If you just need to hide some non-sensitive text from casual eyes — say, in a public config file or a set of notes — a quick XOR pass is often good enough. Nobody's breaking that with a casual glance.
• During early development, when you haven't wired up a real encryption module yet, this works as a temporary placeholder to keep the plumbing connected without exposing plaintext everywhere.