Remove Accents Tool — Strip Diacritical Marks from Text Instantly
Paste text containing accented characters — café, résumé, naïve, señor, Üniversität — and get clean ASCII output with every diacritic stripped. Uses Unicode NFD normalization to decompose each character into a base letter plus combining mark, then removes all combining marks (U+0300–U+036F). The base letters are preserved unchanged. Used for URL slug generation, database normalization, and search index preparation.
What Is Remove Accents?
Paste text with accented characters — café, résumé, naïve, Üniversität, señor — and get clean ASCII output instantly. Every accented letter is reduced to its base character; unaccented letters, digits, and symbols are unchanged.
café résumé naïve→cafe resume naiveWhen to Use Remove Accents
Use when normalizing names for URL slugs, database keys, search indexes, or any system that does not handle accented characters correctly.
Uses Unicode NFD normalization to separate base characters from combining diacritical marks (U+0300–U+036F), then removes the marks. Base letters are preserved.
Who Should Use This Tool?
Normalize user-provided text for URL slugs, database keys, and search indexes.
Clean multilingual datasets to enable consistent matching and deduplication.
Generate clean URL slugs from titles that contain accented characters.
Prepare text for export to systems that require plain ASCII input.
Key Use Cases
- →URL slug generation — "Café Résumé" → "cafe-resume" for SEO-friendly URLs
- →Database normalization — store accent-free versions of names for case-insensitive search
- →Search index preparation — ensure "café" and "cafe" match the same search results
- →Filename cleaning — strip accents before uploading to file systems that reject non-ASCII names
- →CSS class name generation — convert accented category names to valid HTML class names
How to Use Remove Accents
- Paste or type your text into the Input Text box.
- The result appears instantly on the right.
- Click Copy to copy the output to your clipboard.
- Click Clear to reset and process new text.
Common Mistakes & Pro Tips
- !Using accent removal on display text — only use it for slugs, keys, and indexes; preserve accents in the original text
- !Assuming all languages work — Chinese, Japanese, Arabic, Hebrew characters do not decompose in NFD and are left unchanged
- !Removing meaning-bearing diacritics — in German, ü is a distinct vowel, not just u with decoration; accent removal loses phonetic meaning
Frequently Asked Questions
Everything you need to know about Remove Accents
What is NFD normalization?
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NFD (Canonical Decomposition) is a Unicode normalization form that separates precomposed characters into a base letter plus a combining mark. For example, é (U+00E9) decomposes into e (U+0065) + ́ (U+0301 combining acute accent). After decomposition, removing all combining marks (U+0300–U+036F) leaves only the base letters.
Does this handle German umlauts?
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Yes — ä → a, ö → o, ü → u, Ä → A, Ö → O, Ü → U. Note that in German orthography, ü and u are distinct vowels (Mühle ≠ Muhle). Only use accent removal for technical purposes (slugs, keys), never for German linguistic content.