# Search syntax SearXNG allows you to modify the default categories, engines and search language via the search query. Prefix `!` to set Category/engine. Prefix: `:` to set the language. Abbrevations of the engines and languages are also accepted. Engine/category modifiers are chainable and inclusive (e.g. with [!it !ddg !wp qwer]($search?q=!it+!ddg+!wp+qwer)) search in IT category **and** duckduckgo **and** wikipedia for ``qwer``). See the [preferences]($preferences) for the list of engines, categories and languages. ## Examples Search in wikipedia for `qwer`: * [!wp qwer]($search?q=!wp+qwer) * [!wikipedia qwer]($search?q=!wikipedia+qwer) Image search: * [!images Cthulu]($search?q=!images+Cthulu) Custom language in wikipedia: * [:hu !wp hackerspace]($search?q=:hu+!wp+hackerspace)