---
title: "PSML datatypes"
source: https://dev.pageseeder.com/psml/datatypes.html
last_updated: 2026-08-07T17:09:54+10:00
tokens: ~106
---

# PSML datatypes

This article describes the various datatypes used for attribute values in PSML.

## XML schema types

Numerous attribute values have [XML schema datatypes](datatypes/xml_schema_datatypes.md), which are summarized here for convenience.

## PageSeeder datatypes

[PageSeeder datatypes](datatypes/pageseeder_datatypes.md) extend XML schema primitive types and include a specific constraint such as a pattern.