Microsoft Office 2021 Product Key for Free [Update 2023]

Microsoft Office has been the go-to software for businesses and individuals for decades. With the release of Microsoft Office 2021, users can expect a lot of new features, improvements, and security enhancements. One of the essential aspects of installing Microsoft Office 2021 is obtaining a product key. In this article, we will give you Microsoft Office 2021 product key for free, and explain everything you need to know about it, including what it is, how to use it, and more.

What is a MS Office 2021 Product Key?

A Microsoft Office 2021 product key is a unique 25-character code that is used to activate and verify the authenticity of the Microsoft Office 2021 software. When you purchase Microsoft Office 2021, you will receive a product key either in the form of a physical card or an email. You will need to enter this product key during the installation process to activate the software and gain access to all its features.

The product key is a crucial aspect of the Microsoft Office 2021 software because it ensures that only genuine copies of the software are in use. It is designed to prevent piracy and unauthorized use of the software, and it also protects the user from using counterfeit versions that may contain harmful malware or viruses.

Without a valid product key, you will not be able to use Microsoft Office 2021 to its full potential. While you can still install the software without a product key, you will be limited to a trial version with restricted features, and you will not be able to save or edit any documents.

It is important to keep your product key safe and secure as you will need it to reinstall or transfer the software to another device. It is also important to note that each product key is unique

Benefits of Having a MS Office 2021 Product Key

Having a Microsoft Office 2021 product key offers several benefits, such as:

Full Access to Features

With a product key, you can access all the features of Office 2021. This includes popular applications such as Microsoft Word, Excel, PowerPoint, and Outlook, among others.

License for Multiple Devices

When you purchase a Microsoft Office 2021 product key, you can use it on multiple devices. This allows you to use Office 2021 on your desktop, laptop, and even your mobile device.

Security and Updates

Using a genuine copy of Microsoft Office 2021 product key also ensures that you receive regular security updates and feature upgrades from Microsoft, providing peace of mind that your software is secure and up-to-date.

List of Free Office 2021 Product Key

MS Office 2021 Professional Plus Product Key


Microsoft Office 2021 Retail Product Key


Office 2021 LTSC Product Key

  • Office LTSC Standard 2021: KDX7X-BNVR8-TXXGX-4Q7Y8-78VT3
  • Office LTSC Professional Plus 2021: FXYTK-NJJ8C-GB6DW-3DYQT-6F7TH
  • Project Standard 2021: J2JDC-NJCYY-9RGQ4-YXWMH-T3D4T
  • Project Professional 2021: FTNWT-C6WBT-8HMGF-K9PRX-QV9H8
  • Visio LTSC Standard 2021: MJVNY-BYWPY-CWV6J-2RKRT-4M8QG
  • Visio LTSC Professional 2021: KNH8D-FGHT4-T8RK3-CTDYJ-K2HT4
  • Access LTSC 2021: WM8YG-YNGDD-4JHDC-PG3F4-FC4T4
  • Excel LTSC 2021: NWG3X-87C9K-TC7YY-BC2G7-G6RVC
  • Outlook LTSC 2021: C9FM6-3N72F-HFJXB-TM3V9-T86R9
  • PowerPoint LTSC 2021: TY7XF-NFRBR-KJ44C-G83KF-GX27K
  • Publisher LTSC 2021: 2MW9D-N4BXM-9VBPG-Q7W6M-KFBGQ
  • Skype for Business LTSC 2021: HWCXN-K3WBT-WJBKY-R8BD9-XK29P
  • Word LTSC 2021: TN8H9-M34D3-Y64V9-TR72V-X79KV

FAQs about Microsoft Office 2021 Free

What is the difference between Microsoft Office 365 and Microsoft Office 2021?

Microsoft Office 365 is a subscription-based service that provides access to the latest versions of Microsoft Office software, as well as additional cloud-based features. Microsoft Office 2021 is a one-time purchase of the software with no subscription.

Can I use a Microsoft Office 2021 product key on multiple devices?

Yes, a Microsoft Office 2021 product key can be used on multiple devices, up to the maximum number allowed for the specific product key.

How long is the free trial period for Microsoft Office 2021?

The free trial period for Microsoft Office 2021 lasts for 30 days.

Can I transfer my Microsoft Office 2021 product key to another device?

Yes, you can transfer your Microsoft Office 2021 product key to another device. Ensure that you have deactivated Microsoft Office 2021 on any previous devices before activating it on a new one.

What do I do if my Microsoft Office 2021 product key is invalid?

If you receive an error message stating that your product key is invalid, double-check that you have entered the correct product key and that you are not trying to use it on more devices than allowed. If the issue persists, contact Microsoft support for further assistance.


Obtaining a Microsoft Office 2021 product key is essential to access the full range of features and benefits of the software. If you’re unable to locate your product key, refer to the articles below for assistance: