Many brands in Indonesia speak to two audiences at once: Bahasa Indonesia for customers at home, English for partners and buyers abroad. Both use the Latin alphabet, so it is tempting to think any font will do. It mostly will, but a few details decide whether both languages look equally good.

This note is about choosing fonts for a bilingual website: what to test, what to check in a typeface, and how to plan for a third language later. It takes an afternoon, and it saves a redesign.

Indonesian runs longer

The same message is often longer in Bahasa Indonesia than in English, and Indonesian has long words built with prefixes and suffixes, such as pertanggungjawaban or memperkenalkan. A condensed headline font that looks sharp in English can turn a translated headline into three lines, or break a word in an awkward place.

Before you choose, set your real headlines in both languages, not the designer’s sample sentence, and look at them on a phone.

What to check in a typeface

A clear, open lowercase that stays readable at small sizes on a phone.
Enough weights for headings, body text and buttons, usually three or four.
Proper punctuation and symbols: curly quotes, the en dash, the rupiah and dollar signs, and numbers that line up in tables.
A web licence that covers your site and, if you need them, your app and printed materials.

Test the font with your longest words, not your shortest.

How to test fonts for a bilingual website

A font test doesn’t need special tools. Build one simple page with your real content in both languages, then look at it the way your visitors will.

Set your longest headline in both languages, at the size it will really appear on a phone.
Add a paragraph of body text in each language and read it on a mid-range phone, outdoors if you can.
Try a price table, a button and a form label: small text is where weak fonts fail first.
Switch between the two languages and check that nothing reflows badly, such as a menu that wraps or a button that grows to two lines.
Check the file size of the weights you need, because every weight is a download.

One family, or two?

One family with a few weights is usually enough for a whole brand. If you pair two, give each a clear job, for example a characterful face for headlines and a plain one for reading, and check that both cover everything both languages need.

Fonts and speed

Every font weight is a separate file the visitor has to download before the text looks right. On a phone over mobile data, four or five font files can noticeably delay the first view. Choose the weights you really use, prefer variable fonts where they are available, and let text show in a fallback font while the brand font loads. Our note on why a website feels slow on a phone covers the rest.

Plan for a third language

If Mandarin, Japanese or Arabic might come later, choose a Latin font that has a matching partner for those scripts, or plan a fallback that sits comfortably next to it. Adding a language is much easier when the type was chosen with it in mind.

Google’s Noto family was designed for exactly this: it covers most of the world’s writing systems in a consistent style, so it makes a sensible fallback next to a more characterful brand font. For background reading on pairing and readability, Google Fonts Knowledge is a free, well-written guide.

Questions people ask

Can we use the same font as our printed brand materials?

Often, yes, as long as the licence covers web use. Print licences don’t always include websites or apps, so check before you build. If the web licence is too expensive, a close free alternative usually works well on screen.

Should the Indonesian and English pages use different fonts?

No. Use the same fonts for both, so the brand feels like one brand. If a headline is too long in one language, adjust the layout or the wording, not the typeface.

Do free fonts look less professional?

Not necessarily. Many free fonts are made by respected type designers and are used by large brands. What matters is how well the font suits your brand and how carefully it is set.

Choosing fonts for a bilingual website is part of how we set up every brand’s look in our web design service, together with the words: see why we start every website with words.