Text reverser

What this tool does

Three small text operations bundled into one tool:

• Reverse characters flips a string end-to-end. "Hello" becomes "olleH". Useful for puzzles, ciphers, and the occasional design need.
• Reverse words keeps each word intact but reverses their order. "the quick brown fox" becomes "fox brown quick the". Handy when adapting copy for languages that read right-to-left, or when sorting a list of last-first names.
• Reverse lines flips the order of lines in a multi-line input. The first line becomes the last and vice versa. Common when you've sorted a list and need the opposite order without re-sorting.

Unicode-safe character reversal

The character-reversal mode uses Array.from() to split the string by Unicode code points rather than UTF-16 code units. That means combined characters, emoji, and non-Latin scripts reverse correctly. A naive string.split('').reverse().join('') would corrupt emoji and accented characters; this tool doesn't.

One subtlety: a grapheme cluster like a flag emoji (🇺🇸) is made of two regional-indicator code points, and reversing them produces a different flag. Truly grapheme-aware reversal requires the not-yet-everywhere Intl.Segmenter API; for cleaner output, avoid pasting flag emoji into the character-reversal mode.

When to use it

Honestly, not often — but when you need it, having a clean tool beats writing one-line JavaScript in the console. Use cases include:

• Testing whether your code handles RTL or palindrome inputs.
• Generating reversed strings for a "reverse this word" puzzle or quiz.
• Quick sanity-check of file output order — paste, reverse lines, look at the new top.
• Adapting CSV column-order or list ordering for an import.

Examples

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