What Is a String Reverse Tool?
A string reverse tool flips the order of characters, words, lines, or sentences in a given text. Character reversal turns “Hello” into “olleH”, while word reversal turns “Hello World” into “World Hello”. It is used in programming challenges, data processing, text manipulation, and creative writing.
How to Use This String Reverse Tool
- Enter or paste your text in the input area.
- Choose a reverse mode: By Character reverses individual characters, By Word reverses the order of words, By Line reverses line order, and By Sentence reverses sentence order.
- Toggle Preserve Line Breaks to reverse within each line separately (character and word modes).
- Click Reverse to generate the output.
- Use the Copy button to copy the reversed text.
Key Concepts
Character reversal reverses the entire string at the character level, including spaces and punctuation. Word reversal splits by whitespace and reverses word positions while keeping each word’s internal spelling intact. Line reversal is useful for flipping log files, lists, or CSV rows. Sentence reversal splits at period, exclamation, or question mark boundaries.
Frequently Asked Questions
Does character reversal handle emoji and Unicode correctly?
This tool uses JavaScript’s spread operator to split strings, which correctly handles most Unicode characters including emoji. Some complex emoji (ZWJ sequences) may not reverse perfectly due to the nature of combined Unicode codepoints.
What is the difference between “By Word” and “By Character”?
By Character reverses every character in the string, so “abc def” becomes “fed cba”. By Word reverses the order of words but keeps each word intact, so “abc def” becomes “def abc”.