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Reversing Text and ROT13
August 15, 2026
Sometimes you just need to play with text! Whether you're building a palindrome checker, writing a CTF challenge, or just trying to obfuscate a message, text reversers are surprisingly handy.
Reversing Options
- Reverse Characters: Turns "Hello" into "olleH".
- Reverse Words: Turns "Hello World" into "World Hello".
- Reverse Lines: Flips the order of a multi-line list upside down.
What is ROT13?
ROT13 (Rotate by 13 places) is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet. Because the English alphabet has 26 letters, applying ROT13 twice gets you back to the original text. It is frequently used in online forums to hide spoilers or puzzle solutions!