NVDA provides screen reading support for Microsoft Windows and is free and open source.

github.com/nvaccess/nvda
Nvda homepage screenshot

About Nvda

NVDA (NonVisual Desktop Access) is a screen reader for Microsoft Windows. The project describes it as free and open source. It is developed by NV Access together with a global community of contributors. The repository page covers the source code, build tooling, tests, and project documentation. To download a copy, the page directs users to the main NV Access website.

NVDA is available under a modified GNU General Public License version 2 or later. The project has a development roadmap and a stated product vision and principles. The page describes it as a Windows-only tool, so it is not intended for other operating systems. The repository's own metadata lists the project as not open source, which conflicts with the description on the page, so the open source status should be checked against the license.

Key features

  • Screen reader for Microsoft Windows
  • Available under a modified GNU General Public License version 2 or later
  • Code signing for releases provided through SignPath
  • Published development roadmap and product vision statement
  • Community support, issue reporting, and add-on resources
  • Contributing guide covering testing, translation, and add-on creation
Best for: People who need a screen reader on Microsoft Windows, and developers or translators who want to contribute to an open source accessibility project.
Good for
  • Described as free and open source
  • Developed by NV Access with a global community of contributors
  • Releases are code signed through SignPath, which the project credits with supporting its security and integrity
Watch out for
  • The described platform is Microsoft Windows only
  • The repository metadata marks the project as not open source, which conflicts with the page description

Nvda at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
Windows
Open source
Not stated
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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Nvda FAQ

Under what license is NVDA available?
NVDA is available under a modified GNU General Public License version 2 or later. The project's license document has more information.
How can someone contribute to NVDA?
The contributing guide covers reporting issues, triaging issues, testing, translating, contributing code and documentation, and creating add-ons.
Where can I download NVDA?
The repository page directs users to the main NV Access website, which has information about NVDA and a download.
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