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Welcome to Orca

The Orca logo Orca is a free, open source, flexible, and extensible screen reader that provides access to graphical desktop environments via user-customizable combinations of speech and braille.

Orca works with applications and toolkits that support the assistive technology service provider interface (AT-SPI), which is the primary assistive technology infrastructure for Linux and Solaris. Applications and toolkits supporting AT-SPI include the GTK+ toolkit, the Java platform's Swing toolkit, SWT, OpenOffice/LibreOffice, Mozilla, and WebKitGtk. AT-SPI support for the KDE Qt toolkit is currently being pursued.

Thanks to the generous contributions of volunteers on the GNOME Translation Teams, Orca has been translated into many of the world's languages, with support for additional languages being added every day.

Get Involved

  • The Orca project thrives on your feedback and involvement. Join us on the mailing list.

  • Please take the time to report all bugs and feature requests in the GNOME Bugzilla Database. Your reports are very valuable: If we don't know about your thoughts, they may never get addressed.

  • The project's Roadmap shows the plans, ideas, and hopes the team has for the near future. Achieving these goals is highly dependent upon contributions from community members such as you. Please participate!



An introduction to Orca's features, preferences, and commands. This documentation can also be found within Orca by pressing the Help button in the Orca main window or Preferences dialog.

GNOME Desktop Accessibility Guide

The GNOME Desktop Accessibility Guide is for users, system administrators, and anyone else who is interested in how the GNOME Desktop supports people with disabilities from an end user point of view. If you are new to GNOME, you may wish to read this documentation first.

GNOME Documentation Library

The GNOME Documentation Library includes the accessibility user and developer documents listed above along with many other documents for users, developers, and system administrators. From here, you can also access the documentation translated into many different languages.