Software developers are encouraged to post separate articles describing the IDN capability of their products and explaining any configuration details that are relevant to the IDN TLD evaluation. Brief descriptive links to those articles will be placed below by the IDNwiki administrators.
The Opera browser supports the example.test names either directly, or after updating as described in a separate article on the Opera Browser.
Firefox 3 fully supports the example.test names without additional configuration. Firefox 2, SeaMonkey 1.1, Camino 1.5 and other browsers based on the Firefox 2 codebase support the example.test names but display them as A-labels by default. Their display in fully legible form can be enabled by following the instructions in a separate article on Firefox.
Internet Explorer version 7.0 supports the example.test names. Version 6 has no built-in support for IDNs and therefore requires the installation of a plug-in that is available at http://idn.isc.org/. Further configuration details for IE7 are described in a separate article on Internet Explorer.
Safari has supported IDNs since version 1.2 in February 2004, including the Safari 3 Public Beta for Windows. Further information is available in a separate article on Safari browser.
See the separate article on testing e-mail.
Word processors and other office utilities
Many programs automatically convert URLs into clickable links, or have a manual option for doing so. If you type one of the example.test names preceded by an http:// you will see if this functionality is available, and can test if the program supports IDNs simply by clicking on the link it creates.
Libidn allows applications to support all aspects of IDN easily and with a small footprint. It has been ported to many systems, and runs well under GNU/Linux, Mac OS X and Windows. It has native implementations for C, Java, and C#. See Libidn library