NVDA allows blind and vision impaired people to access and interact with the Windows operating system and many third party applications.


  • Support for popular applications including web browsers such as Mozilla Firefox and Google Chrome, email clients, internet chat software, music players, and office programs such as Microsoft Word and Excel
  • Built-in speech synthesizer supporting over 55 languages, plus support for many other 3rd party voices
  • Reporting of textual formatting where available such as font name and size, style and spelling errors
  • Automatic announcement of text under the mouse and optional audible indication of the mouse position
  • Support for many refreshable braille displays, including input of Braille via braille displays that have a braille keyboard
  • Ability to run entirely from a USB flash drive or other portable media without the need for installation
  • Easy to use talking installer
  • Translated into more than 50 languages
  • Support for modern Windows Operating Systems including both 32 and 64 bit variants
  • Ability to run on Windows logon and other secure screens
  • Announcing controls and text while interacting with gestures on touch screens
  • Optional Telephone Support and comprehensive Training Material available at very low cost
  • Enthusiastic and helpful user community

System Requirements

  • Operating Systems: all 32-bit and 64-bit editions of Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11, and all Server Operating Systems starting from Windows Server 2008 R2.
  • For Windows 7, NVDA requires Service Pack 1 or higher.
  • For Windows Server 2008 R2, NVDA requires Service Pack 1 or higher.
  • Memory: 256 mb or more of RAM
  • Processor speed: 1.0 ghz or above
  • About 90 MB of storage space.

What's New

NV Access is pleased to announce that version 2022.4 of NVDA, the free screen reader for Microsoft Windows, is now available for download. We encourage all users to upgrade to this version.


  • This release includes several new key commands, including table say all commands. A "Quick Start Guide" section has been added to the User Guide. There are also several bug fixes.
  • eSpeak has been updated and LibLouis has been updated. There are new Chinese, Swedish, Luganda and Kinyarwanda braille tables.
  • Important Note: Please note, after updating any software, it is a good idea to restart the computer. Restart by going to the Shutdown dialog, selecting "restart" and pressing Enter. Updating software can change files which are in use. This can lead to instability and strange behavior which is resolved by rebooting. This is the first thing to try if you do notice anything odd after updating.