toolsko

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ToolsKo is written in English. Prefer another language? Open a translated version of this public page.

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Palindrome Checker

Check whether letters and digits read the same backward.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Ignores spacing, punctuation and letter case; retains Unicode letters and digits. Accented characters remain distinct. Compares code points, not linguistic grapheme clusters.

How to use it (step by step)

  1. 1Type or paste your text into the “Input” box. There is already an example in it so you can see how it works; press Clear to start with your own.
  2. 2The answer appears right away in the “Result” box. No button needed.
  3. 3Press Copy and paste the result wherever you need it.

Words to know

Cashback / rewards
Money or points you get back for spending on a card, like a small discount after you pay.
Unicode / fancy text
The worldwide list of every letter, symbol and emoji. “Fancy fonts” are actually special Unicode letters that look bold or cursive.
Case (UPPERCASE, lowercase…)
How letters are written: UPPERCASE (all big), lowercase (all small), Title Case (Big First Letters). camelCase and snake_case are styles programmers use for names.
Unicode / UTF-8
Unicode gives every character (A, ñ, ₱, 😀) a number. UTF-8 is how those numbers are stored as bytes.

More in Text & Writing

Remove Duplicate WordsKeep the first occurrence of each whitespace-separated word.Word Frequency CounterRank words by occurrence count without sending text away.N-Gram Phrase CounterCount recurring two- to five-word phrases.Basic Text RedactorMask common email and phone-like patterns before sharing drafts.Text Chunk SplitterSplit text into bounded chunks with optional overlap.Anagram CheckerCompare two texts for the same letter and digit counts.