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How do you reverse a string correctly?

Reversing a string sounds trivial until Unicode gets involved. A naive byte reversal breaks emoji, flag sequences, and combining marks because those are made of multiple code units that belong together. This tool reverses by extended grapheme clusters, which means visible characters stay intact and the output renders exactly the way a human would draw it reversed on paper.

Use Cases

Test palindrome checkers

Produce a reversed copy to verify a palindrome routine handles multi-byte characters without crashing.

Prepare right-to-left mocks

Quickly flip a sample string to inspect how a UI handles unusual character ordering during design reviews.

Teach string internals

Show juniors why naive reversal mangles emoji, then demonstrate a grapheme-aware implementation.

Build puzzle inputs

Word games and CTF challenges sometimes reverse text as a simple obfuscation; this tool produces the expected form.

FAQ

Does it handle emoji correctly?

Yes. Emoji composed of zero-width joiners and skin tone modifiers are reversed as a single cluster so they render intact.

Are combining marks preserved?

Yes. Each base character carries its combining marks through the reversal, so accented letters stay correct.

What about bidi text?

The characters are reversed in memory. The final rendered direction depends on the consuming UI bidi algorithm.

Can I reverse by word?

This tool reverses by character. Split your input on whitespace, reverse the list, and join if you need word-level reversal.