Randomize ASCII Case

Randomize ASCII Case

Randomize ASCII Case

Randomize ASCII Case

This Randomize ASCII Case tool allows you to randomize the case of alphabetic characters in ASCII text, providing a fun way to alter the appearance of text data.

How to Use

  1. Input ASCII Text: Paste or type the ASCII text you want to randomize the case of into the provided textarea.
  2. Click "Randomize Case": Trigger the randomization process by clicking the button.
  3. View Randomized Output: The text with randomized case will be displayed in the output textarea below.


The tool iterates through each character of the input ASCII text. If the character is alphabetic (a letter), it randomly converts it to lowercase or uppercase with equal probability using JavaScript's Math.random() function. Non-alphabetic characters remain unchanged.


  • Text Variation: Provides a fun way to create variations of ASCII text by randomly changing the case of letters.
  • Customizable: Users can apply randomization to specific parts of text data while leaving non-alphabetic characters unchanged.
  • Interactive: Offers an interactive interface for quickly generating randomized text output with a single click.

Frequently Asked Questions

Q: Can I use this tool for non-alphabetic characters? A: Yes, non-alphabetic characters remain unchanged during the randomization process. Only alphabetic characters (letters) are subject to random case conversion.

Q: Is the randomization process truly random? A: Yes, the randomization is based on the Math.random() function, which generates pseudo-random numbers with uniform distribution, ensuring a random outcome for each character.

Q: Can I customize the probability of case conversion for alphabetic characters? A: Currently, the tool uses a 50/50 probability for converting each alphabetic character to lowercase or uppercase. However, you can modify the code to adjust this probability if desired.

Q: Will the randomization process affect the length or structure of the text? A: No, the randomization process only changes the case of alphabetic characters while preserving the length and structure of the input text.


The Randomize ASCII Case tool offers a simple yet entertaining way to generate variations of ASCII text by randomly changing the case of letters. Whether you're looking to add a playful touch to text data or explore different stylistic options, this tool provides an interactive solution for randomizing ASCII case.