Do I need to launch all languages at once?

No — and trying to do so is a common mistake. Start with the one or two languages where you have the most existing traction (traffic, sign-ups, or organic impressions) and validate the ROI before expanding. Each additional language has a long-term maintenance cost, so quality beats breadth.

What about Chinese? It has over a billion speakers.

Chinese is complex for two reasons. First, there are two writing systems: Simplified (used in mainland China) and Traditional (used in Taiwan, Hong Kong, and parts of Southeast Asia) — they are not interchangeable. Second, the Great Firewall blocks many Western analytics, payment, and CDN services, making mainland China a technically distinct market that often requires a dedicated localization strategy. Most teams add Traditional Chinese first because it is reachable without infrastructure changes, and treat Simplified Chinese as a separate market decision.

Should I prioritize EU languages for GDPR reasons?

GDPR applies regardless of whether your site is translated — it is triggered by processing personal data of EU residents, not by language. Translating your site into French or German will not create new GDPR obligations you don't already have. Conversely, serving EU users in English does not make you GDPR-exempt. Language choice should be driven by market opportunity, not compliance.

Why is Hindi ranked low despite India's huge population?

English penetration among Indian internet users is significantly higher than in most countries. Tech-savvy Indian users — especially those in urban areas who are most likely to buy software or SaaS — are highly comfortable with English-language products. Hindi localization can help reach broader tier-2 and tier-3 city audiences, but for most B2B or SaaS products it is not a top-five priority.

How do I know if a language is worth adding?

Check three signals: (1) organic search impressions from that country in Google Search Console, (2) existing sign-ups or leads from that country, and (3) whether any competitor is already serving that market in the local language. If one or more of these is true, the language is worth adding. If none are true, it is speculative.

Strategy
Localization
Guide

Which languages should you add to your website first?

A data-driven framework for founders, marketers, and PMs choosing which languages to prioritize when going multilingual for the first time.

June 27, 202610 min read

The right question: internet users, not world population

Most people start this decision by Googling “most spoken languages in the world” and end up with a list dominated by Mandarin, Hindi, and Spanish. But world population is the wrong lens for a product decision. What matters is: how many people in this language actively use the internet and buy things online?

A language spoken by 500M people with 30% internet penetration and low e-commerce spend is a worse first bet than a language spoken by 100M people with 90% internet penetration and high GDP per capita. The decision framework has three layers:

Market size: Number of active internet users in that language, not total speakers.
Purchasing power: Average income and willingness to pay for software or services in that market.
Your own signal: Where is your existing traffic and organic search coming from right now?

The top 5 languages to consider first

These five languages cover the largest addressable markets for most web products. They are not ranked by total speaker count — they are ranked by a combination of internet market size, purchasing power, and how commonly they appear as the highest- ROI first expansion language for English-origin products.

🇪🇸 Spanish

500M+ speakers

The single best first expansion for most English-language products. It unlocks the entire Latin American market (Brazil aside) plus 41M+ US Hispanic internet users — a market larger than many European countries. Spanish-speaking countries show strong e-commerce growth, and the search volume in Spanish for most software categories is enormous.

🇫🇷 French

300M+ speakers

French is spoken across Western Europe, Canada (Québec), and significant parts of sub-Saharan Africa — one of the fastest-growing internet markets in the world. France alone has a GDP per capita that makes it a valuable market, and French-speaking African countries represent a young, digitally-native population with rising purchasing power.

🇩🇪 German

~100M speakers

German speakers are fewer in number but punch far above their weight in purchasing power. Germany, Austria, and Switzerland consistently rank among the highest GDP-per-capita markets in Europe. German consumers also have a strong preference for local-language products — conversion rates on German-language sites are measurably higher for German users than on English equivalents.

🇧🇷 Portuguese

250M+ speakers

Brazil is the 9th largest internet market in the world by number of users — larger than Germany, France, or the UK. Brazilian Portuguese and European Portuguese are different enough to warrant attention (vocabulary, spelling, and tone differ), but for most software products a single Brazilian Portuguese localization serves both markets adequately as a starting point.

🇯🇵 Japanese

~125M speakers

Japan has one of the highest e-commerce spend-per-capita figures globally. Japanese users show a strong cultural preference for Japanese-language interfaces — English-only products face a significant trust and conversion barrier that translated products do not. Japanese is a larger translation investment (different script, different UX conventions), but the market's willingness to pay makes it worthwhile.

When to add Arabic

Arabic is the 4th most used language on the internet, with strong internet penetration and high purchasing power in Gulf Cooperation Council (GCC) countries — Saudi Arabia, the UAE, Qatar, and Kuwait rank among the world's highest GDP-per- capita markets. If your analytics show meaningful traffic from those regions, Arabic should move up your priority list quickly.

The main technical consideration is right-to-left (RTL) layout. Arabic is written right-to-left, which means your site layout — not just the text — needs to mirror. This historically required significant engineering work. Lingvit handles RTL automatically: when a visitor switches to Arabic, the widget applies dir="rtl" to the document and the layout flips without any custom CSS from you. Read the full guide in RTL website support.

When NOT to follow pure speaker count

Speaker count alone is a misleading signal. Two important exceptions:

Hindi — 600M+ speakers, low urgency for most products

India has an enormous internet user base, but English penetration among Indian internet users — particularly those likely to buy B2B software or SaaS — is significantly higher than in most countries. Urban, tech-literate Indian users are very comfortable with English-language products. Hindi localization makes sense for consumer products targeting tier-2 and tier-3 cities, but it is not a top-five priority for most software products.

Russian — large market, geopolitical complexity

Russian is spoken across a wide geography including Russia, Ukraine, Belarus, and Central Asian countries. The Russian internet market was historically large and tech-savvy. Current geopolitical conditions have made this market significantly more complex — payment processing, regulatory exposure, and market access all require careful evaluation before investing in Russian localization. It may still make sense for certain verticals, but go in with eyes open.

How to use your own analytics to decide

General market data tells you where the opportunity exists. Your own analytics tell you where you already have traction. The combination is what drives the best decision.

Google Search Console

Open Search Console and go to Performance → Search results. Filter by country. Look for countries where you have significant impressions but low click-through rate. This is a strong signal that people are searching for what you offer, but your page isn't winning because it's in the wrong language. Those countries are your highest-ROI translation targets.

Your sign-up or lead data

Check where your existing sign-ups or leads come from. If 8% of your sign-ups already come from Germany without any German-language content, imagine the conversion rate lift when you add it. Existing traction without localization is the strongest possible signal.

Competitor research

Check which languages your direct competitors have translated into. If three of your top competitors have a French version and you don't, you are leaving French organic traffic to them by default.

The quick-win playbook

If you want a simple, actionable starting point:

Open Google Search Console. Identify the top non-English country by impressions.
Cross-reference with your sign-up data. If the same country appears — that is your first language.
If no single country dominates, use the general priority list above: Spanish first, French second, German third.
Launch that one language, measure the impact over 60–90 days, then decide on the next.

This approach avoids the trap of trying to support ten languages at once and delivering mediocre quality across all of them. One language done well beats five languages done poorly.