NVDA

A free, open-source screen reader for Microsoft Windows developed by NV Access. NVDA enables people who are blind or have low vision to use computers by reading on-screen text aloud through a speech synthesizer or outputting to a refreshable Braille display. As open-source software, NVDA allows developers to create add-ons that extend its functionality — such as support for reading mathematical formulae or specialized content types. NVDA supports web browsing, document editing, and application interaction, and is widely used globally, particularly in regions where commercial screen readers like JAWS are cost-prohibitive.