You can download all the free sharepoint webparts and code from sharepoint247.com from this webpage
|SubSites Webpart for Sharepoint 2010||A webpart for showing a list of subsites below the current site. For Sharepoint Portal Server 2010, Sharepoint Server 2013,and Foundation 2010 and 2013||7,8KB||Info|
|SubSites Webpart for Sharepoint 2007||A webpart for showing a list of subsites below the current site. This webpart is for MOSS 2007 and WSS 3.0||86,2KB||Info|
|Source Code for Subsites webpart||A Visual Studio 2010 solution with the complete Subsites webpart source code||136KB||Info|
|SubSites Webpart for Office 365||The Subsites webpart as a sandboxed solution. Can be installed on Office 365 or any other environment with Sharepoint 2010/2013 requiring a sandboxed solution||7KB||Info|
If you like and use any of the webparts and would like to keep it free and updated you can help by contributing some money. This will go to hosting this site and future development of this and other free webparts on this site. Thanks.