# Documentation and downloads

Here you’ll find everything you need to keep your projects running smoothly—from comprehensive documentation and knowledge bases, to the latest product downloads, and powerful developer resources for building and integrating applications.

## Documentation and knowledge bases

Our core product documentation and knowledge bases are housed in three primary portals: **HIT Portal**, **SiePortal** and **Support Center**. For building-technology products, see HIT Portal; for industrial products, services and solutions, access SiePortal; for Digital Industries Software products, use Support Center.

- [HIT Portal - documentation for building-technology products](https://hit.sbt.siemens.com/RWD/App/Main?RC=HQEU&lang=en&MODULE=HitBase&ACTION=OpenPage&KEY=Home)
- [SiePortal - documentation for industrial products](https://sieportal.siemens.com/)
- [Support Center - documentation for Digital Industries Software products](https://support.sw.siemens.com/)

## Downloads

Stay up to date with the latest product downloads, updates, and releases. For industrial products, services, and solutions, visit **SiePortal**. For Digital Industries Software products, use **Support Center**. Need CAD files or technical data? The **CAx Download Manager** lets you instantly download detailed 2D/3D models, wiring diagrams, and product specifications—all in one place.

- [SiePortal - downloads for industrial products](https://sieportal.siemens.com/en-us/search?scope=knowledgebase&Type=siePortal&SearchTerm=&SortingOption=CreationDateDesc&EntryTypes=Download&Page=0&PageSize=20)
- [CAx download manager](https://support.industry.siemens.com/cs/my/cax?lc=en-us)
- [Support Center - downloads for Digital Industries Software products](https://support.sw.siemens.com/)

## Siemens Xcelerator developer resources

Explore Siemens Xcelerator developer resources to build, integrate, and innovate faster. The **Developer Portal** is your starting point for tools and community access. Use the **Developer Dashboard** to manage your projects and credentials. Browse the **API and SDK Catalog** to find interfaces and kits for your applications, and dive into the **Developer Documentation** for detailed guides and best practices. Whether you’re creating new solutions or connecting existing ones, these resources give you everything you need in one place.

- [Siemens Xcelerator Developer Portal](https://developer.siemens.com/index.html)
- [Siemens Xcelerator Developer Dashboard](https://dashboard.accounts.developer.siemens.com/home)
- [API and SDK catalog](https://developer.siemens.com/apis.html)
- [Developer documentation](https://developer.siemens.com/docs.html)

## Other support topics

### Manage products and services

Manage your orders, account and profile, hardware registrations, and licenses and renewals.

- [Manage now](https://www.siemens.com/en-us/support/manage-products-services/)

### Support and troubleshooting

Explore support options, repair services, and expert guidance for Siemens products—all in one hub.

- [Get support](https://www.siemens.com/en-us/support/)

### Training

Discover a wide range of training and learning resources that meet learners where they are and take them where they want to go.

- [Start learning](https://www.siemens.com/en-us/training/)