"SharePoint ToolBox" is an open source project which is hosted on CodePlex and consists of couple of powerful and useful tools and add-ons for SharePoint that help developers and IT professionals implement SharePoint based solutions more quickly and managed them more effectively. All these tools has been developed by the Contributions of Microsoft SharePoint Product Group, Microsoft SharePoint Online Services Group, Microsoft SharePoint Rangers consultants, and SharePoint MVPs.

Following are various tools developed under this project:

Profile Import Tool:

The Profile Import Tool is designed to import users and update their profile properties in MOSS 2007 when forms based authentication is used rather than integrated Windows authentication. It uses ASP.NET 2.0 built-in classes to get a list of all users for a membership provider as well as the list of their profile properties, but if the membership provider doesn’t support the GetAllUsers method or if the SQL Profile Provider isn't being used, the tool provides an option for custom code to inherit the base class and override the appropriate methods (returning a list of all users or returning a list of all properties for a specific user).

CopyTimer:

The CopyTimer is a tool to measure the performance of SharePoint websites. CopyTimer tool performs a series of timed download/upload tests from/to a SharePoint server and records various additional information about the client computer such as latency, network connection, IP address, etc. Results are posted to a specified SharePoint list as well as saved in a local XML file. The best part about the tool is it can be run from any windows client which has access to the sharepoint site being tested.

AlertPipeline:

The AlertPipeline tool provides ability to run custom code when alerts are triggered. The SharePoint Alert Pipeline (or SPAlertPipeline for short) is the combination of a software tool and development methodology, which allows developers to create custom code that runs every time an alert fires. This allows you to introduce custom alert modalities besides just the standard email that SharePoint sends out when an alert occurs. For example, you could write custom code that sends an alert as a text message, an instant messaging alert, a tool to archive all alerts that get fired, and/or something else. It’s called an Alert Pipeline because your code gets injected into the process of firing the standard SharePoint alert email. You get access to all of the information about the item and event that triggered the alert and can use that in your custom code. The Alert Pipeline uses a registration process so that you can add as many custom alert handlers as needed for your scenario.

Check All Items in Site Directory:

This tool tests each URL link added in Site Directory of Sharepoint Portal. In production case, we can have more than 1000 URL link in the Site Directory, it's impossible to test them manually. You can use this tool for connect to the Site Directory of your Portal and check each link of this. You can after export the result in XML file for use this in Excel.

MOSS V-Sync 1.0:

This tool provides an easy way to manage SharePoint lists and document library views, including features such as: copying views across environments, checking differences, deleting views, etc. 

All the above SharePoint tools are available as a free download as part of the "SharePoint Toolbox" open source project at http://www.codeplex.com/SPToolbox.