---
title: "Install PKI Express"
description: "Choosing a platform to install PKI Express: Ubuntu/Mint, Red Hat Enterprise Linux, CentOS/Oracle/Fedora or Windows."
canonical: "https://docs.lacunasoftware.com/en-us/articles/pki-express/setup"
locale: "en"
product: "PKI Express"
last_updated: "2026-10-12"
---

# Install PKI Express

To install PKI Express, choose one of the supported platforms:

* Linux
  * [Ubuntu/Mint](https://docs.lacunasoftware.com/en-us/articles/pki-express/setup/linux-ubuntu)
  * [Red Hat Enterprise Linux (RHEL)](https://docs.lacunasoftware.com/en-us/articles/pki-express/setup/linux-rhel)
  * [CentOS/Oracle/Fedora](https://docs.lacunasoftware.com/en-us/articles/pki-express/setup/linux-centos)
* [Windows](https://docs.lacunasoftware.com/en-us/articles/pki-express/setup/windows)

The client libraries look for PKI Express in its default installation folder. If you install it in another folder,
see [Client library settings](https://docs.lacunasoftware.com/en-us/articles/pki-express/config#client-library).