Developers who want to set up their own proxy server may download the proxy servlet code, implemented by CNRI as a Java servlet.

The Client Extension for Mozilla is an extension to Firefox that embeds a handle client in the browser. It displays raw handle record data in the browser window, and performs simple administrative tasks such as creating new handles and updating handle values.

The Handle URI Resolver is a plug-in that enables Microsoft Internet Explorer^® Windows version to recognize the handle protocol and resolve a handle of the form hdl:10.123/456.

Administrative clients developed by CNRI, for server administration and identifier operations, are included in the HANDLE.NET server software distribution.