> ## Documentation Index
> Fetch the complete documentation index at: https://projectdiscovery-nuclei-syntax-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AlterX Overview

> A fast and customizable subdomain wordlist generator

Alterx is a fast and customizable subdomain wordlist generator that uses patterns to fit into common subdomain enumeration pipelines. Instead of relying on hardcoding patterns in the tool itself, AlterX uses a set of patterns that users can customize.

Check out [our blog introducing AlterX](https://blog.projectdiscovery.io/introducing-alterx-simplifying-active-subdomain-enumeration-with-patterns/) and [view the repo here](https://github.com/projectdiscovery/alterx).

## Features

* Fast and Customizable
* Automatic word enrichment
* Pre-defined variables
* Configurable Patterns
* STDIN / List input

## Support

Questions about using Chaos? Issues working through installation? Cool story or use case you want to share? Get in touch!

Check out the [Help](/help) section of the docs or reach out to us on [Discord](https://discord.com/invite/projectdiscovery).