Text Search Languages¶

MongoDB offers a full-text search solution, MongoDB Atlas Search, for data hosted on MongoDB Atlas. A legacy text search capability is available for users self-managing MongoDB deployments.

The text index and the $text operator may be used with the following languages, and accepts either the two-letter ISO 639-1 language code or the long form of the language name:

Language Name	ISO 639-1 (Two letter codes)
`danish`	`da`
`dutch`	`nl`
`english`	`en`
`finnish`	`fi`
`french`	`fr`
`german`	`de`
`hungarian`	`hu`
`italian`	`it`
`norwegian`	`nb`
`portuguese`	`pt`
`romanian`	`ro`
`russian`	`ru`
`spanish`	`es`
`swedish`	`sv`
`turkish`	`tr`

If you specify a language value of "none", then the text search uses simple tokenization with no list of stop words and no stemming.