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NonVisual Desktop Access (NVDA) is a free and open source screen reader for the Microsoft Windows operating system. Providing feedback via synthetic speech and Braille, it enables blind or vision impaired people to access computers running Windows for no more cost than a sighted person. Major features include support for over 20 languages and the ability to run entirely from a USB drive with no installation. NVDA is developed by NV Access, with contributions from the community.

For more information about NVDA, including features and system requirements, visit the About section.

Check out the Download section if you would like to obtain a copy.

For information about community resources, including email lists, the NVDA IRC chat channel and links to community sites written in other languages, take a look at the Community section.

For documentation about NVDA, visit the Documentation section.

If you are interested in NVDA's development, including reporting bugs or feature requests, please see the Development section.

If you would like to support the project, please consider making a Donation to NV Access.