Text Encrypt Decrypt Tool

Mode and Method Settings

Encryption Method:

Unicode Encoding - Converts text to Unicode numeric representation, supports all languages including Chinese, Japanese, Korean, etc.

Character Substitution - Encrypts by substituting letters with a specified offset (Caesar cipher), affects only letters, preserves numbers and symbols.

Base64 Encoding - Converts text to a string of A-Z, a-z, 0-9 and +/=, suitable for transmitting binary data in text.

Steps:

Select Encrypt or Decrypt Mode
Select encryption method
Enter text on the left
Click "Encrypt Text" or "Decrypt Text" button
Result will be displayed on the right
Use "Copy Result" button to copy

Encryption Methods:

Unicode Encoding: Supports all languages including Chinese
Character Substitution: Affects only letters
Base64 Encoding: Suitable for text transmission

Decryption Hint:

In Decrypt Mode, the tool intelligently detects encryption type and decrypts automatically. If detection fails, manually select the encryption method.

Select Example