NVDA (NonVisual Desktop Access) is a screen reader for Microsoft Windows. It allows blind and vision-impaired people to operate a computer: NVDA reads the text on screen aloud with a synthetic voice or sends it to a braille display. It is installed as a desktop application on your own computer and can be extended with community add-ons. Volunteers have translated it into many languages.
NVDA is developed by NV Access in collaboration with a global community of contributors. NV Access Limited is an Australian public company limited by guarantee and a registered charity, so the organisation is based outside the EU. The software is released under the GNU General Public License version 2 or later, with two documented exceptions, and the source code is public. NVDA runs locally on your own computer. According to NV Access it does not collect personally identifiable information, and any data collection within NVDA can be disabled entirely.