> ## Documentation Index
> Fetch the complete documentation index at: https://docs.projectdiscovery.io/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 high-performance, customizable subdomain wordlist generator. It fits into common subdomain enumeration pipelines by using customizable patterns, not hardcoded ones.

For more details, check out [our blog introducing AlterX](https://blog.projectdiscovery.io/introducing-alterx-simplifying-active-subdomain-enumeration-with-patterns/) or view the [GitHub repo](https://github.com/projectdiscovery/alterx).

## Features

* **Fast and Customizable**: Generate subdomain wordlists tailored to your needs.
* **Automatic Word Enrichment**: Built-in enrichment to expand results.
* **Pre-defined Variables**: Use variables to simplify your patterns.
* **Configurable Patterns**: Modify patterns to match specific enumeration pipelines.
* **STDIN / List Input**: Accepts standard input and list files for easy integration.

## Support

Need help with **AlterX**? Whether it’s installation issues or feedback on a cool use case, we want to hear from you.

* Visit the [Help](/help) section for docs.

## Join the Community

If you have questions or want to discuss ProjectDiscovery with other developers, join us on [Discord](https://discord.com/invite/projectdiscovery).

<div style={{ position: 'relative', backgroundImage: 'url("https://mintcdn.com/projectdiscovery/PrBSST-qkD3tzRi-/images/background.png?fit=max&auto=format&n=PrBSST-qkD3tzRi-&q=85&s=969dc2a9d18154f49b0fbb5d6c99e112")', borderRadius: '10px', padding: '2rem', textAlign: 'center' }}>
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