Reverse Text
Reverse text by characters, words, or lines instantly.
Why use it
Transform your text in one click
Three modes
Reverse by characters, by words, or by lines depending on your needs.
Full Unicode
Correct handling of emojis, diacritics, and complex scripts using grapheme clusters.
Instant
The result appears in real time as you type or paste text.
No submissions
Everything happens in your browser. Your text never leaves your device.
How it works
Three steps, no hassle
Enter your text
Type or paste the text you want to reverse.
Choose the mode
Select reversal by characters (mirror), by words, or by lines depending on your need.
Copy the result
The reversed text appears instantly. Copy it with one click.
FAQ
Got questions?
Text reversal is a transformation that changes the order of elements in a text. Depending on the level: character reversal (each character in reverse order, creating a mirror effect), word reversal (words in reverse order but each word with its characters in original order), and line reversal (lines in reverse order, useful for reordering lists). Each mode produces completely different results and has distinct use cases.
Use cases include: checking if a string is a palindrome (reads the same forward and backward), creating mirror text for visual effects in graphic design, light data obfuscation to prevent text from being read directly (not encryption), reordering lists copied in reverse order, generating text for artistic effects or wordplay, and programming debugging when verifying your own reversal algorithms.
Correct Unicode reversal requires working with grapheme clusters, not individual code points. A grapheme is the minimum unit of writing perceived visually: it can be formed by multiple Unicode code points (base + combining diacritics, emojis with ZWJ, country flags which are pairs of regional characters). Reversing by code point would break combined sequences. The extractor uses the Intl.Segmenter API when available for correct grapheme segmentation.
Yes, they are distinct operations. Reversing text changes the order of characters or words. RTL (Right-to-Left) is a writing direction property affecting languages like Arabic and Hebrew. The Unicode Bidirectional Algorithm (UAX #9) automatically manages text direction in mixed contexts. Arabic text reversed character by character would produce unreadable text, not the desired mirror effect. For genuine RTL text, you need to change the rendering direction, not the character order.
A palindrome is a sequence that reads the same left to right as right to left. To detect one: normalize the text (lowercase, remove spaces and punctuation), reverse the characters, and compare with the normalized original. 'racecar' and 'level' are English palindromes. In programming, checking for palindromes is a classic technical interview exercise because it requires string handling, comparison, and optionally Unicode awareness.
Palindromes, cryptography, and the Unicode Bidirectional Algorithm
Palindromes have fascinated humanity since antiquity. The most famous Latin palindrome is 'In girum imus nocte et consumimur igni' (we wander in the night and are consumed by fire). In English, 'racecar', 'level', and 'madam' are simple palindromes. 'A man, a plan, a canal: Panama' is a classic example with spaces and punctuation removed. Text reversal is the fundamental operation for detecting them algorithmically. In mathematics, palindromic numbers (like 121, 1331) and palindromic sequences appear in number theory and combinatorics.
Text reversal has historically been used in cryptography as a rudimentary transposition cipher. The Caesar cipher (1st century BC), while technically a substitution cipher, was combined with transposition in more complex variants. The Spartan scytale (5th century BC) was a cylindrical transposition device. Simple reversal is not secure encryption — it is trivially reversible — but it illustrates the concept of text transformation that underlies modern transposition ciphers, where security comes from the complexity of the reordering pattern.
The Unicode Bidirectional Algorithm (UAX #9) is the standard that allows operating systems and browsers to correctly render RTL (Arabic, Hebrew, Persian, Urdu) text mixed with LTR text (Latin, Cyrillic, Chinese). The algorithm analyzes Unicode code points and their directionality property (strong LTR, strong RTL, neutral, weak) to determine the visual order of characters on screen. This is independent of the logical order stored in memory. Confusing logical order (storage) with visual order (rendering) is a common mistake when processing RTL text programmatically.