Choosing Arabic fonts for interfaces
Why the font choice matters
Arabic letters connect and change shape by position, so a weak font hurts reading faster than a weak Latin font does. The font also sets the personality of the whole interface. Choose it on purpose, with criteria.
A font that looks elegant in a poster can fail in a settings screen. Interface text is short, repeated and read quickly, so clarity matters more than character.
Five criteria
- Legibility at small sizes. Test captions, table cells and form labels, not only headlines.
- Weight range. A family with several weights lets you build hierarchy without mixing fonts.
- Harmony with the Latin typeface. Compare x-height, stroke contrast and weight side by side in a bilingual line.
- Diacritics support. If the content may use vowel marks, check that they sit cleanly and do not collide.
- File size. Arabic fonts can be heavy, so check what each weight adds to the page.
Families and styles
Widely used open-source families for interfaces include Noto Sans Arabic, IBM Plex Sans Arabic, Cairo, Tajawal and Almarai. Check each one yourself, because coverage and weights differ.
For a bilingual product, one superfamily that covers both scripts is a convenient start, because weights and sizes are designed to work together. If the two scripts come from different families, match them by weight and by apparent size, and then check them in real lines of text.
Naskh-style designs are usually the safer choice for long body text. Geometric or kufi-style designs often work well for display text such as headings, but they can tire the eye in long paragraphs.
Technical rules
- Never add <code>letter-spacing</code> to Arabic. It breaks the connection between letters and damages the word shape.
- Subset the font to the characters you need and serve it as WOFF2.
- Declare the language with the <code>lang</code> attribute, so the browser can pick suitable Arabic glyph forms and fonts.
- Load only the weights you use, and set <code>font-display</code> so text stays visible while the font loads.
Test fallback behaviour too. If the Arabic font fails to load, the browser picks another font, and the layout can shift. Choose a fallback with similar proportions and list it in the font stack after the main family.
Check the licence before shipping. Open-source licences differ, and a font used in an app or a PDF may need different terms from one used on a web page.
Always test the final choice with real Arabic content, not placeholder text.
Sources
- Google Fonts. Noto Sans Arabic. https://fonts.google.com/noto/specimen/Noto+Sans+Arabic
- MDN Web Docs. font-display. https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display
This guide was drafted with AI assistance from public standards and references. For the exact wording of a standard, use the sources listed above.