TanStack Start i18n

TanStack Start i18n for Lovable apps

TanStack Start gives Lovable apps SSR, routing, and server functions, but not full i18n. Lovalingo adds the missing layer: automatic UI translation, locale URLs, a language switcher, translated metadata, canonical URLs, hreflang, and no JSON translation files.

Locale URLs

Create crawlable /fr, /es, /de, and other language paths.

Server SEO

Keep html[lang], canonical, hreflang, title, and meta aligned.

No JSON files

Avoid manual message extraction, string keys, and per-locale file maintenance.

Copy this TanStack-aware prompt

Install Prompt
Add multilingual support to this TanStack Start app with Lovalingo.

1. Install @lovalingo/lovalingo.
2. Keep the source UI in English.
3. Add locale URLs for /en, /es, /fr, and /de.
4. Server-render html[lang], canonical, hreflang, title, meta description, OG, and Twitter tags.
5. Add the Lovalingo language switcher.
6. Keep /.well-known/lovalingo.json, /robots.txt, and /sitemap.xml unprefixed.
7. Verify that /es and /fr return HTTP 200 and show the switcher.

Best for / not best for

Best for

  • Lovable projects created on the current TanStack Start stack.
  • React apps that need multilingual SEO and server-rendered locale signals.
  • Small teams that do not want to maintain translation JSON files.

Not best for

  • WordPress, Shopify, Webflow, or CMS-heavy websites.
  • Teams that already maintain a full manual next-intl or i18next workflow.
  • Apps that want to translate database content without sending that content to an i18n layer.

Frequently asked questions

Does TanStack Start include i18n by default?

No. TanStack Start gives React apps server rendering, routing, and server functions, but it does not automatically translate UI copy, create a language switcher, maintain hreflang, or generate translated metadata.

Why does Lovable TanStack Start need a different i18n setup?

New Lovable projects use TanStack Start with SSR. That means the i18n layer has to preserve the file-based routing and server-rendered metadata instead of replacing the app with a generic React Router setup.

Can Lovalingo translate a TanStack Start app without JSON files?

Yes. Lovalingo lets teams keep the default source UI in English and adds automatic translation, locale URLs, hreflang, and a switcher without maintaining per-language JSON message files.

Start with the Lovable path

If your TanStack Start app was generated in Lovable, start with the Lovable i18n hub and use the stack-aware prompt.