Testing with Diacritics: European Language Placeholder Text Guide

Europe’s digital market represents over 500 million potential users across dozens of languages—most of which use diacritical marks that Classic Lorem Ipsum completely fails to test. From French’s elegant accents (é, è, ê) to Czech’s complex diacritics (ř, ň, ť), from German’s umlauts (ä, ö, ü) to Polish’s distinctive letters (ł, ź, ż), proper diacritic support is essential for European market success.

Yet countless companies launch “European versions” of their products only to discover that their fonts don’t properly render accented characters, their line heights cut off diacritical marks, or their databases corrupt special characters. The cost? Lost credibility, poor user experience, and abandoned markets representing hundreds of millions of users.

This comprehensive guide will show you why testing with authentic European language placeholder text is essential, which diacritics matter for which languages, and how to avoid the common mistakes that plague international products entering European markets.

Understanding European Diacritics

Diacritics (also called diacritical marks or accents) are marks added to letters to modify their pronunciation or meaning. In European languages, diacritics aren’t decorative—they’re essential components of the alphabet.

Why Diacritics Matter

They change meaning entirely:

• French: ou (or) vs. où (where)
• Spanish: ano (anus) vs. año (year)
• Polish: lód (ice) vs. lód (stem/shoot)
• Czech: cas (obsolete word) vs. čas (time)

They’re legal letters: In most European languages, é isn’t “e with an accent”—it’s a distinct letter. Treating ń as n is like treating q as o in English.

They affect alphabetization:

• Swedish: å comes after z in the alphabet
• Czech: č comes after c
• Lithuanian: ė is a separate letter from e

They impact search and databases: Search for “café” should find “café” (not “cafe”). Databases must store and retrieve diacritics correctly.

The European Diacritic Landscape

Romance languages (French, Spanish, Italian, Portuguese, Romanian):

• Acute accent: á é í ó ú
• Grave accent: à è ì ò ù
• Circumflex: â ê î ô û
• Diaeresis: ë ï ü ÿ
• Tilde: ñ õ
• Cedilla: ç
• Romanian-specific: ă â î ș ț

Germanic languages (German, Dutch, Swedish, Danish, Norwegian):

• Umlaut: ä ö ü
• Scandinavian: å æ ø
• German: ß (eszett/sharp s)

Slavic languages (Polish, Czech, Slovak, Croatian, Slovenian):

• Acute accent: á é í ó ú ý
• Caron (háček): č š ž ď ť ň ř ě
• Polish-specific: ą ę ł ń ś ź ż
• Stroke: đ ł
• Circle above: ů

Baltic languages (Lithuanian, Latvian):

• Macron: ā ē ī ū
• Acute: á é í ó ú
• Lithuanian-specific: ė į ų
• Cedilla: ģ ķ ļ ņ ŗ

Finno-Ugric (Estonian, Hungarian):

• Umlaut: ä ö ü
• Hungarian-specific: ő ű (double acute)
• Caron: š ž

Other European languages (Turkish, Albanian, Maltese):

• Turkish: ğ ı (dotless i) İ (capital dotted i) ş ç
• Albanian: ë ç
• Maltese: ċ ġ ħ ż

Why Lorem Ipsum Fails for Diacritic Testing

Classic Lorem Ipsum contains no diacritical marks. Testing with it means you’re not testing at all for European markets.

Problem 1: Font Support

Many fonts claiming “international support” have:

• Missing diacritics entirely (characters show as boxes □)
• Poorly designed diacritics (wrong position, size, or weight)
• Misaligned accents (too high, too low, wrong spacing)
• Missing special characters (ß, ł, ø completely absent)

Without authentic French placeholder text, Polish placeholder text, or Czech placeholder text, you won’t discover these issues until your French users see □ instead of é.

Problem 2: Vertical Space

Diacritics require vertical space above and below the base line:

Above: é è ê ë ñ õ á ů ő
Below: ą ę ģ ķ ļ ņ ţ ș
Both: ấ ệ (Vietnamese, but illustrates the principle)

English text with line-height: 1.4 might look fine, but French text with the same line-height will have accents cut off or touching the line above.

Problem 3: Character Encoding

Diacritics expose UTF-8 encoding issues that English text masks:

• Database fields set to Latin1 instead of UTF-8
• Email systems that strip non-ASCII characters
• URLs that don’t properly encode diacritics
• Forms that reject “special characters”
• APIs that mangle accented characters

These issues only appear when testing with actual European language placeholder text.

Problem 4: Input and Display

European users type diacritics constantly. Testing reveals:

• Input methods that don’t support diacritics
• Autocomplete that doesn’t match accented characters
• Search that fails to find café when user types cafe
• Password fields that reject valid diacritics
• Copy-paste that strips accents

Language-by-Language Diacritic Guide

French (Français)

French placeholder text - 274 million speakers

Essential diacritics:

• Acute: é (very common - été, café, liberté)
• Grave: è à ù (common - très, où, voilà)
• Circumflex: â ê î ô û (frequent - pâte, tête, île)
• Diaeresis: ë ï (less common - Noël, naïve)
• Cedilla: ç (common - français, garçon)

Typography notes: French typography is elegant but demands precision. Test capital letters with accents—traditional French typography omits accents on capitals, but modern usage includes them: CAFÉ vs CAFE.

Common issues:

• É, È, À at start of sentences or in all-caps headings
• Circumflex hats (ˆ) getting cut off by insufficient line-height
• Ç cedilla appearing incorrectly positioned

Test phrases with French placeholder text:

• “À bientôt” (See you soon)
• “État d’esprit” (State of mind)
• “Crème fraîche” (Fresh cream)

German (Deutsch)

German placeholder text - 134 million speakers

Essential diacritics:

• Umlaut: ä ö ü (very common - schön, über, Mädchen)
• Eszett: ß (frequent - Straße, groß, Fußball)

Typography notes: German has compound words that can be extraordinarily long: Geschwindigkeitsbegrenzung (speed limit). Combined with umlauts, this creates unique challenges.

The ß character is controversial—Swiss German doesn’t use it, always using ss instead. Modern German allows SS as capital (STRAẞE or STRASSE).

Common issues:

• Ä Ö Ü in all-caps headings looking strange
• ß appearing as β (Greek beta) with wrong fonts
• Umlauts in long compound words breaking layouts

Test with German placeholder text:

• “Größe” (Size)
• “Überschrift” (Heading)
• “Fußball-Bundesliga” (Football league)

Polish (Polski)

Polish placeholder text - 45 million speakers

Essential diacritics:

• Acute: ć ń ó ś ź (common)
• Stroke: ł (very common - Łódź, był)
• Dot above: ż (common - każdy, już)
• Ogonek: ą ę (very common - są, będzie)

Typography notes: Polish uses more diacritics than most European languages. Nearly every sentence contains multiple accented characters. The ł character is particularly distinctive.

Common issues:

• Ogonek (tail below letter) getting cut off
• Ł looking like £ (pound sign) with poor fonts
• Acute and dot accents appearing identical with bad fonts

Test with Polish placeholder text:

• “Proszę” (Please)
• “Łódź” (City name - boat)
• “Zażółć gęślą jaźń” (Famous pangram with 9 Polish letters)

Czech (Čeština)

Czech placeholder text - 10.7 million speakers

Essential diacritics:

• Acute: á é í ó ú ý (long vowels)
• Caron: č š ž ď ť ň (very distinctive)
• Circle: ů (unique to Czech - růže, stůl)
• Ě with caron: ě (unique pronunciation indicator)

Typography notes: The caron (háček - little hook) is crucial to Czech. It completely changes pronunciation: c vs č, s vs š. The ů character (u with ring above) is unique and beautiful.

Common issues:

• Caron marks appearing as apostrophes with bad fonts
• Ř (r with caron) - notoriously difficult to render properly
• Ě appearing as two separate characters

Test with Czech placeholder text:

• “Dobrý den” (Good day)
• “Řeřicha” (Watercress - multiple ř)
• “Příliš žluťoučký kůň” (Famous tongue-twister)

Romanian (Română)

Romanian placeholder text - 30 million speakers

Essential diacritics:

• Breve: ă (very common - către, baltă)
• Circumflex: â î (common - român, înalt)
• Comma below: ș ț (standard since 1993)

Typography notes: Romanian diacritics were controversial—older systems used cedilla (ş ţ) instead of comma below (ș ț). Modern Romanian standard uses comma below, but many fonts still show cedilla incorrectly.

Common issues:

• Ș Ț appearing with cedilla instead of comma below
• Î at start of words looking awkward in all-caps
• Ă breve being too large or too small

Test with Romanian placeholder text:

• “Bună ziua” (Good day)
• “Întâlnire” (Meeting)
• “Naționalitate” (Nationality)

Hungarian (Magyar)

Hungarian placeholder text - 13 million speakers

Essential diacritics:

• Acute: á é í ó ú (long vowels)
• Umlaut: ö ü (common)
• Double acute: ő ű (unique to Hungarian - very common)

Typography notes: The double acute (˝) is Hungary’s distinctive contribution to diacritics. It’s steeper than regular acute and indicates longer vowel duration. Many fonts lack proper double acute support.

Common issues:

• Ő Ű double acute appearing as two separate acute marks
• Double acute being too flat (looking like umlaut)
• Missing capital forms of ő and ű

Test with Hungarian placeholder text:

• “Jó napot” (Good day)
• “Szükség” (Need)
• “Tűz” (Fire - with double acute)

Scandinavian Languages

Swedish (Svenska) - Swedish placeholder text
Danish (Dansk) - Danish placeholder text
Norwegian (Norsk) - Norwegian placeholder text

Essential diacritics:

• Å å (Swedish, Danish, Norwegian - distinct letter after z)
• Ä ä (Swedish, Finnish)
• Ö ö (Swedish, Finnish)
• Æ æ (Danish, Norwegian)
• Ø ø (Danish, Norwegian)

Typography notes: Scandinavians are particular about their letters. Å is not A with a ring—it’s a distinct letter. Mixing ä/ö with æ/ø reveals immediately if you’ve confused Swedish with Danish/Norwegian.

Common issues:

• Å appearing too small or detached
• Æ Ø looking poorly kerned
• Missing capital forms in all-caps text

Test with Scandinavian placeholder text:

• Swedish: “Jag hör dig” (I hear you)
• Danish: “Jeg forstår” (I understand)
• Norwegian: “Brød og smør” (Bread and butter)

Baltic Languages

Lithuanian (Lietuvių) - Lithuanian placeholder text
Latvian (Latviešu) - Latvian placeholder text

Essential diacritics:

• Lithuanian: ą č ę ė į š ų ū ž (extensive set)
• Latvian: ā č ē ģ ī ķ ļ ņ š ū ž (macrons common)

Typography notes: Lithuanian is one of the oldest Indo-European languages and has preserved many ancient features including extensive diacritics. The ė (e with dot) is unique and essential.

Common issues:

• Macrons (ā ē ī ū) appearing as boxes
• Multiple diacritics in one word causing spacing issues
• Ogonek marks getting cut off

Test with Baltic placeholder text:

• Lithuanian: “Ačiū” (Thank you)
• Latvian: “Paldies” (Thank you)

Turkish (Türkçe)

Turkish placeholder text - 88 million speakers

Essential diacritics:

• Breve: ğ (soft g - very common)
• Undotted i: ı (critical distinction)
• Dotted I: İ (capital of i)
• Cedilla: ç ş (common)
• Umlaut: ö ü (common)

Typography notes: Turkish is famous for its dotted/undotted i distinction. When you capitalize i, it becomes İ (not I). When you lowercase I, it becomes ı (not i). This breaks many English-centric assumptions.

Common issues:

• I/i and İ/ı confusion causing search problems
• Ğ appearing incorrectly (should be soft, not hard g)
• Case conversion breaking with i/I

Test with Turkish placeholder text:

• “Merhaba” (Hello)
• “İstanbul” (Must use İ not I)
• “Doğru” (Correct/Right)

Setting Up European Language Testing

Character Encoding Foundation

UTF-8 is non-negotiable for European markets. Every layer of your stack must use UTF-8:

HTML:

<meta charset="UTF-8" />

Database: MySQL/PostgreSQL tables must use utf8mb4 (not just utf8)

HTTP headers: Ensure Content-Type includes charset=utf-8

Email: SMTP must properly encode diacritics

APIs: JSON should always be UTF-8

Files: Save all source files as UTF-8 (not Latin1, not Windows-1252)

Font Selection Strategy

Not all fonts support all European diacritics equally. Test systematically:

Comprehensive test string:

ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ
àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ
ĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝ
ĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıĴĵĶķĸĹĺĻļ
ĽľŁłŃńŅņŇňŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝ
ŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽž

Recommended safe fonts for European languages:

• System fonts: Great diacritic support
• Noto Sans/Serif: Comprehensive coverage
• Inter: Excellent modern sans-serif
• Roboto: Google’s workhorse, good support
• Open Sans: Reliable and widely used

Fonts to avoid:

• Many display/decorative fonts lack diacritics
• Script/handwriting fonts often have poor accents
• Older fonts may predate modern Unicode standards

Typography Settings for Diacritics

Line height: European languages need slightly more vertical space than English.

Recommended line-height: 1.6-1.7 (vs. 1.5 for English-only)

Letter spacing: Generally, don’t add letter-spacing to accented text. It makes diacritics look detached from their base letters.

Text decoration: Underlines must not touch diacritics below the line (ą, ę). Use text-decoration-skip-ink for better appearance.

Capitalization: All-caps text must properly capitalize accented letters. CAFÉ not CAFE, ŁÓDŹ not ŁODZ.

Testing Strategy for European Languages

Phase 1: Font Validation

Test your font against multiple European languages:

Romance languages: Use French, Spanish, Italian, Portuguese, Romanian placeholder text

Germanic languages: Test with German, Dutch, Swedish, Danish

Slavic languages: Verify with Polish, Czech, Croatian

Baltic languages: Check Lithuanian, Latvian

Generate placeholder text for each and render at multiple sizes. Look for:

• Missing characters (□ boxes)
• Poorly positioned diacritics
• Incorrect character shapes
• Weight inconsistencies

Phase 2: Layout Testing

With validated fonts, test layouts with longest-word languages:

German (German placeholder text): Tests horizontal space with compound words

Polish (Polish placeholder text): Tests vertical space with ogoneks

French (French placeholder text): Tests circumflexes and elegance

Hungarian (Hungarian placeholder text): Tests double acute marks

Test these specific elements:

• Navigation menus
• Button labels
• Form fields
• Cards and tiles
• Tables and data grids
• Headings (H1-H6)
• Footer links

Phase 3: Input and Forms

Forms are where diacritic issues become critical:

Test every form with:

• Names with accents: François, Müller, Żak, Åberg
• Addresses with diacritics: Zürich, Łódź, København
• Email domains with IDN: münchen.de, français.com
• Phone numbers with European formats
• Search with accented queries

Verify:

• Input fields accept diacritics
• Validation doesn’t reject accents
• Error messages display properly
• Autocomplete matches accented characters
• Copy-paste preserves diacritics
• Database stores and retrieves correctly

Phase 4: Search and Sorting

Search functionality must handle diacritics intelligently:

Diacritic-insensitive search: Search for “cafe” should find “café”

Proper alphabetization:

• Swedish: å comes after z
• German: ä sorts like ae (or separately, depending on context)
• Czech: č comes after c (not treated as c)

Case-insensitive with accents: “CAFÉ” and “café” should match

Test search with French placeholder text, German placeholder text, and Polish placeholder text.

Phase 5: Internationalization (i18n)

Beyond display, test your i18n infrastructure:

Translation files: Ensure translators can use native characters

Database queries: WHERE clauses must handle diacritics correctly

URL slugs: Handle accented characters properly: “café-français” not “caf-franais”

Filenames: Support diacritics in uploaded files

Email: Headers and content encode properly

Export/Import: CSV, Excel, PDF preserve diacritics

Common European Diacritic Mistakes

Mistake 1: Latin1 Instead of UTF-8

Many legacy systems use Latin1 (ISO-8859-1) encoding. This:

• Supports Western European languages (French, German, Spanish)
• Fails completely for Polish, Czech, Romanian, Turkish
• Causes subtle corruption issues

Always use UTF-8, which supports all European languages plus everything else.

Mistake 2: Stripping “Special Characters”

Security-conscious developers sometimes strip “special characters” from input, removing all diacritics. This makes your product unusable for millions of Europeans.

Polish user “Łukasz Żak” becomes “ukasz ak” (not even close to correct).

Mistake 3: Ignoring Capital Accents

Some systems lowercase everything for comparison or storage, losing distinction:

• ÉTAT becomes etat (wrong: should be état)
• ŁÓDŹ becomes Łódź (loses information)

Modern European usage includes accents on capitals: É È Ç Ü Ł Ř etc.

Mistake 4: ASCII-Only Passwords

Many password systems reject diacritics as “special characters.” This is:

• Culturally insensitive
• Unnecessarily restrictive
• Based on outdated assumptions

Europeans should be able to use diacritics in passwords if desired (though they may choose not to for keyboard compatibility reasons).

Mistake 5: Search That Doesn’t Match

User searches for “Müller” but your system only finds exact matches, missing “Muller” or “Mueller” alternatives. Or vice versa—search for “Muller” and miss “Müller.”

Implement smart search that:

• Matches with or without diacritics
• Understands equivalents (ä ≈ ae, ß ≈ ss)
• But still prioritizes exact matches

Mistake 6: Poor Font Fallbacks

System fonts vary by OS and language. Without proper fallbacks:

• Windows: May default to Arial (decent diacritics)
• macOS: May use SF Pro (excellent diacritics)
• Linux: May use Liberation Sans (variable quality)
• Android: Roboto (good but not comprehensive)

Always specify multiple fallback fonts.

Mistake 7: URL Encoding Issues

European diacritics in URLs require proper encoding:

• café → caf%C3%A9 (correct UTF-8 encoding)
• café → caf%E9 (incorrect Latin1 encoding)

Modern browsers handle this automatically, but servers and backend systems must support it.

Mistake 8: Insufficient Line Height

The most visible diacritic mistake: accents getting cut off or touching adjacent lines.

Test with Polish placeholder text (ogoneks below) and French placeholder text (circumflexes above) in the same paragraph.

Mistake 9: Assuming One Font Fits All

A font that beautifully renders French accents may have terrible Czech carons or missing Romanian commas below.

Test each target language separately with authentic placeholder text.

Industry-Specific European Considerations

E-commerce for European Markets

Product sites must handle multiple European languages:

Product names: Often keep English names but add local descriptions
Categories: Must work in all target languages
Checkout: Names, addresses with proper diacritics
Customer service: Support emails with accents
Returns/shipping: Forms with European addresses

Test fashion sites with Fashion Ipsum concepts translated across French, German, Italian.

SaaS and Business Tools

Business tools need professional, accurate diacritic handling:

User names: European customers expect proper rendering
Company names: Many European companies have diacritics in official names
Reports: Exported data must preserve accents
Invoicing: Legal requirements for proper character encoding

Test with Corporate Ipsum concepts across European languages.

Travel and Hospitality

Travel sites must excel at diacritics:

Destination names: München not Munchen, København not Kobenhaven
Hotel names: Hôtel Château, Łazienki Palace
Addresses: Complete with local characters
User reviews: Support all European languages

Healthcare and Legal

Accuracy is critical:

Patient names: Medical records must be exact
Prescriptions: Drug names often have diacritics
Legal documents: Names, addresses must be legally accurate
Contracts: Formal language uses all proper diacritics

Test with Medical Ipsum and Legal Ipsum across European languages.

Framework and CMS Support

Modern frameworks handle UTF-8 well, but test thoroughly:

WordPress: Good international support, but themes vary

Shopify: Handles diacritics well, test your theme specifically

React/Next.js: UTF-8 by default, verify font loading

Vue.js: Good support, mainly about proper fonts

Webflow: Manual attention needed for font selection

Accessibility and Diacritics

Screen readers must properly pronounce European languages:

Test with:

• NVDA (supports many European languages)
• JAWS (good European language support)
• VoiceOver (excellent with European languages)

Verify:

• Language attribute set correctly (:lang attributes)
• Diacritics don’t break screen reader flow
• Alt text includes proper diacritics

Testing Tools and Resources

Essential tools:

• PlaceholderText.org: Generators for all major European languages
• Unicode Character Inspector: Verify proper encoding
• BrowserStack: Test on European devices and locales
• Google Fonts: Filter by language script support

Font testing:

• Test string generators for each language
• Compare fonts side-by-side with diacritics
• Check both regular and bold weights

Conclusion: Europe Demands Proper Diacritics

With 500+ million users across dozens of languages, Europe represents a massive, sophisticated digital market. Yet proper diacritic support is often treated as an afterthought, leading to broken user experiences and lost market opportunities.

Key principles:

1. UTF-8 everywhere - No exceptions, no legacy encodings

2. Test with authentic placeholder text - Use French, German, Polish, Czech and other language generators

3. Choose fonts carefully - Not all fonts properly support all diacritics

4. Generous line height - 1.6-1.7 minimum to accommodate marks above and below

5. Proper capitalization - Modern European languages use accents on capital letters

6. Smart search - Match with and without diacritics intelligently

7. Database integrity - Store and retrieve diacritics perfectly

8. Form validation - Accept all European characters as valid

9. Test comprehensively - Each language has unique requirements

10. Cultural respect - Diacritics aren’t decorative—they’re essential to language

Ready to test your European layouts? Start with our placeholder text generators for French, German, Polish, Czech, Romanian, and other European languages, and use this guide to ensure your designs work perfectly for hundreds of millions of European users.

Europe’s digital market is mature, sophisticated, and demanding. Products that handle diacritics properly show respect for local languages and cultures. Products that don’t are immediately dismissed as poorly localized foreign imports.

Last updated: January 2025.