I’m working on setting up a dual-language Shopify store that supports both Portuguese and English. I’ve been experimenting with a jQuery localization plugin that automatically translates content based on the visitor’s browser language settings.
The plugin is functioning correctly and converts Portuguese text (my default language) to English when it detects an English browser. However, I need to implement three specific features:
Display Portuguese content as the primary language for customers from Portugal and Brazil
Show English content for visitors from other countries (including Spanish, French, German, Japanese speakers, etc.)
Add a language selector dropdown that allows users to manually override the automatic detection (for example, a Portuguese user with an English browser who prefers to view the Portuguese version)
Is it feasible to achieve this level of control with the jQuery localization approach? What would be the best way to implement the manual language override feature alongside the automatic browser detection?
jQuery localization can handle this, but you need to layer your detection right. I built something similar last year and learned that browser language detection is pretty unreliable - users often have mixed preferences or browsers set to languages they don’t actually want. For manual overrides, store the user’s choice in localStorage or a cookie. Make sure it overrides automatic detection. When someone picks Portuguese, it should stick for their entire session no matter what their browser says. Set up your hierarchy like this: manual selection > stored preference > geolocation > browser language fallback. Watch out though - jQuery plugins can hurt SEO since search engines might not index translated content properly. If you can, handle the main language detection server-side and just use jQuery for manual switching. You’ll get way better search visibility for both languages that way.
jQuery localization can technically do what you want, but I’d think twice about this approach. I’ve worked with international Shopify stores, and browser language detection creates messy user experiences. I’ve seen users from Portugal with English browsers who still wanted Portuguese content.
For geolocation, you’ll need an IP service like MaxMind or ipapi to detect country - browser language won’t cut it. Just remember VPNs and proxies mess with location detection.
The manual override is easy enough with sessionStorage or cookies, but keeping that preference across pages gets tricky. Plus it can clash with Shopify’s built-in internationalization.
If you’re planning more than two languages down the road, check out Shopify’s native market and language features instead. They handle currency, shipping, and legal stuff way better than client-side hacks.