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RemoveDiacritics[string]

replaces characters in string that have diacritics by their base ASCII characters, when possible.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Options  
Language  
Properties & Relations  
Possible Issues  
See Also
Related Guides
History
Cite this Page

RemoveDiacritics

RemoveDiacritics[string]

replaces characters in string that have diacritics by their base ASCII characters, when possible.

Details and Options

Examples

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Basic Examples  (2)

Remove diacritic marks from a character:

Wolfram Language code: RemoveDiacritics["ḥ"]
Wolfram Language code: RemoveDiacritics["ā"]
Wolfram Language code: RemoveDiacritics["ï"]

Normalize an entire string:

Wolfram Language code: RemoveDiacritics["naïve"]
Wolfram Language code: RemoveDiacritics["haček"]

Scope  (2)

RemoveDiacritics automatically threads over lists:

Wolfram Language code: RemoveDiacritics[{"ā", "ḥ", "ï"}]

RemoveDiacritics works on strings of different scripts:

Wolfram Language code: RemoveDiacritics["Ευρώπη"]

Options  (2)

Language  (2)

With Languagelang, RemoveDiacritics will not remove diacritics that are part of the basic alphabet of lang:

Wolfram Language code: RemoveDiacritics["Ñandú", Language -> "Spanish"]

By default, Language option is set to $Language. Changing it has the same effect as setting the option:

Wolfram Language code: Block[{$Language = "Finnish"}, RemoveDiacritics["Åland"]]
Wolfram Language code: RemoveDiacritics["Åland", Language -> "Finnish"]

Properties & Relations  (2)

For a specified language, applying RemoveDiacritics to the result of Alphabet should return the same list of letters:

Wolfram Language code: RemoveDiacritics[Alphabet["Danish"], Language -> "Danish"]
Wolfram Language code: % === Alphabet["Danish"]

Using AlphabeticOrder with IgnoreDiacritics->True is equivalent to using AlphabeticOrder after applying RemoveDiacritics:

Wolfram Language code: {AlphabeticOrder[Language -> "Spanish", IgnoreDiacritics -> True]@@#, AlphabeticOrder[Language -> "Spanish"]@@RemoveDiacritics[#, Language -> "Spanish"]}&@{"cráter", "crater"}

Possible Issues  (1)

RemoveDiacritics breaks ligatures in basic ASCII characters when the ligature is not part of the language:

Wolfram Language code: RemoveDiacritics["ǽ"]

If it is part of the basic alphabet of the language, it only removes the diacritics:

Wolfram Language code: RemoveDiacritics["ǽ", Language -> "Danish"]
Wolfram Research (2015), RemoveDiacritics, Wolfram Language function, https://reference.wolfram.com/language/ref/RemoveDiacritics.html (updated 2015).

Text

Wolfram Research (2015), RemoveDiacritics, Wolfram Language function, https://reference.wolfram.com/language/ref/RemoveDiacritics.html (updated 2015).

CMS

Wolfram Language. 2015. "RemoveDiacritics." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2015. https://reference.wolfram.com/language/ref/RemoveDiacritics.html.

APA

Wolfram Language. (2015). RemoveDiacritics. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/RemoveDiacritics.html

BibTeX

@misc{reference.wolfram_2026_removediacritics, author="Wolfram Research", title="{RemoveDiacritics}", year="2015", howpublished="\url{https://reference.wolfram.com/language/ref/RemoveDiacritics.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_removediacritics, organization={Wolfram Research}, title={RemoveDiacritics}, year={2015}, url={https://reference.wolfram.com/language/ref/RemoveDiacritics.html}, note=[Accessed: 13-June-2026]}