String Obfuscator

Obfuscate strings (like passwords, IBANs, or tokens) to make them shareable and recognizable without revealing their content

Input Text

Obfuscation Mode

Mask Character

Keep Only End Characters

Number of End Characters to Keep

Visible Characters at Start

Visible Characters at End

Obfuscated Result

Examples

Credit Card Number

Original: 4532 0159 6784 1234

Obfuscated: 4532 **** **** 1234

Email Address

Original: [email protected]

Obfuscated: exa***@***ain.com

Phone Number

Original: +86 138 8888 8888

Obfuscated: +86 138 **** 8888

Usage Guide

What is String Obfuscation?

String obfuscation is a technique to partially hide sensitive information, making it recognizable when shared while keeping the full content private.

Obfuscation Modes

Partial Obfuscation: Keeps the beginning and end of the string, replacing the middle with mask characters
Full Obfuscation: Replaces the entire string with mask characters
Custom Obfuscation: Allows you to specify how many characters to keep visible at the start and end

Common Uses

Hide middle digits of credit card numbers
Protect email addresses
Mask phone numbers
Hide parts of passwords or tokens
Protect bank account information

Security Tips

Do not use this tool for highly sensitive information
Perform obfuscation locally when possible
Be mindful of where and with whom you share obfuscated information