| <code>user</code>
| <code><nowiki>http://basex.org/modules/user</nowiki></code>
|-
| [[Utility Module|Util]]
| Various utility and helper functions. {{Mark|Introduced with Version 8.5.}}
| <code>util</code>
| <code><nowiki>http://basex.org/modules/util</nowiki></code>
|-
| [[Validation Module|Validation]]