Spellcheck support for different languages in Sanity

Yes, spellcheck in Sanity Studio can work with different languages! According to the Block type documentation, the Portable Text Editor has a spellCheck option that you can enable or disable (it defaults to true).

Here's how you can configure it in your schema:

{
  name: 'content',
  type: 'array',
  of: [
    {
      type: 'block',
      options: {
        spellCheck: true // enabled by default
      }
    }
  ]
}

Important to know: The actual language used for spellchecking is determined by your browser's language settings, not by Sanity itself. The spellcheck feature relies on the browser's built-in spell checker, which means:

• The language detection and dictionaries come from the browser (Chrome, Firefox, Safari, etc.)
• Each browser has different language support and dictionary quality
• Content editors can typically configure their browser's spellcheck language preferences

For multilingual content workflows, here are some common approaches:

1. Separate fields per language - Create different fields for each language, and editors switch their browser's spellcheck language when editing different language fields
2. Browser configuration - Have editors configure their browser to support multiple spellcheck languages
3. Browser extensions - Some editors use browser extensions that allow quick switching between spellcheck languages

If you need more advanced language-specific validation beyond basic spellchecking (like grammar checking or language-specific rules), you might want to explore custom validation rules or integrate third-party language tools into your workflow.