Skip to main content
The indexLanguages parameter sets the languages of your indexed content. Algolia uses them to apply processing such as tokenization, normalization, and filtering during indexing. For a list of supported language ISO code, see Supported languages.

Usage

  • Always set both indexLanguages and queryLanguages, so indexing and search work the same way.
  • If indexLanguages isn’t set:
    • Algolia uses the value of ignorePlurals or removeStopWords, if defined
    • Otherwise, it applies all supported language settings, which may lead to unexpected results

Example

Current API clients

Last modified on September 16, 2026