NonVisual Desktop Access (NVDA) is a free and open source screen reader for the Microsoft Windows operating system.
"NonVisual Desktop Access" (NVDA) is a free, open source, portable screen reader for Microsoft Windows. The project was started by Michael Curran in 2006. It currently works exclusively with accessibility APIs such as Microsoft Active Accessibility, IAccessible2 and the Java Access Bridge, rather than using specialized video drivers to 'intercept' and interpret visual information. It is licensed under the GNU General Public License.
NVDA uses eSpeak as its integrated speech synthesizer, and also supports SAPI synthesizers. Output to Braille displays is supported officially from Version 0.6p3 onwards.
NVDA software enables blind and vision impaired people to use a computer by communicating what is on the screen using a synthetic voice or braille.
NVDA (NonVisual Desktop Access) is the only screen reader for Microsoft Windows that is totally free, yet fully functional and portable. You can download it to your PC, or to portable media such as a USB stick which you can use with any computer at school, work – anywhere!
It was created by NV Access founders Michael Curran and James Teh – blind computer programmers who believe passionately in universal access to computers. NVDA is free. It’s been downloaded 70,000+ times, in 43 languages.
Source: NV Access
- Support for popular applications including web browsers, email, internet chatting, and office programs including Word and Excel.
- NVDA can be installed directly on to your computer, but it has the ability to run entirely from a USB stick or other portable media.
- Built-in speech synthesiser for English and more than 43 other languages.
- NVDA can now speak using the new Windows OneCore voices (also known as Microsoft Mobile voices) included in Windows 10.
- 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.
- Easy to use talking installer
- Support for common accessibility interfaces including Java Access Bridge.
- Support for Windows command prompt and console applications.
- Operating Systems: all 32-bit and 64-bit versions of Windows XPXP or later.
- Internet connection is only required for product activation and software update.
- Ability to run entirely from a USB stick.
- NVDA is bundled with eSpeak, a free multi-lingual speech synthesizer. Additionally, NVDA can use both SAPI 4 and SAPI 5 speech engines.