String Obfuscator
Turn readable text into unicode escapes, decimal char codes, or a keyed XOR shown as hex — and see it decode straight back in a live pane so you can trust it’s reversible. It runs in your browser.
This string obfuscator hides text in plain sight using schemes that are clearly reversible: \uXXXX unicode escapes, space-separated character codes, or a repeating-key XOR encoder rendered as hex. A second pane always decodes the output back to the original, so you can see it round-trips. Use it to obfuscate text online that would otherwise trip a naive keyword filter, or to keep casual eyes off a string. To be clear, this is a string encoder, not encryption — anyone can reverse it, so never use it to protect a real secret.
How it works
- 1
Type your text
Enter or paste the string you want to hide in the plain-text box.
- 2
Pick a scheme
Choose unicode escapes, char codes, or keyed XOR-to-hex. For XOR, set a key.
- 3
Copy and verify
Copy the obfuscated output. The proof pane below shows it decoding back so you know it’s reversible.
Instant & 100% private — nothing is uploaded
Everything runs locally in your browser. Your code, text and files are processed on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and nothing is ever stored or logged.
Frequently asked questions
- Is this string encoder the same as encryption?
- No. Every mode here is reversible by design and, apart from a short XOR key, needs no secret to undo. It hides text from a quick glance or a simple filter, not from anyone determined to read it.
- How do I reverse the obfuscated text?
- Paste it back into the plain-text box with the same mode selected — the tool decodes and encodes both directions. For XOR you also need the same key. The proof pane shows the decoded result live.
- What do the three modes do?
- Unicode escape rewrites each character as \uXXXX, char codes lists each character’s decimal number, and XOR combines your text with a repeating key and shows the bytes as hex.
- Does the keyed XOR make it secure?
- It raises the bar slightly because you need the key to decode, but repeating-key XOR is easy to break and isn’t real cryptography. Treat it as obfuscation only.
- Does it handle emoji and accented characters?
- Yes. The unicode and char-code modes work per code unit and the XOR mode is UTF-8 safe, so emoji and accents round-trip back to the original text.
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