Free contextual menu software for mac

This contextual menu simply sets the desktop picture to the file you control click on in the Finder, assuming the file is an image.
This option will be present in your context menu, allowsing you to set the currently selected image as a desktop wallpaper.
Installation
Place the SetDTPictureCM.plugin into
Computer > /Library/Contextual Menu Items
or
Home > /Library/Contextual Menu Items
Then simply restart the Finder either using Force Quit from the Apple menu, or logging in and out.

Main features:
- Sets the desktop picture to the file you control click on in the Finder. This menu items displays only if the file can be rendered by QuickTime as an image. The menu items name is "Set Desktop Picture To"
- Locates the current file that is serving as the desktop picture. This menu items always displays. The menu items name is "Reveal Desktop Picture"
- Reverts to the last desktop picture. This menu item displays whenever this contextual menu was used to set the desktop picture. The menu items name is "Reset Desktop Picture"
- Keeps track of all files used by this contextual menu to set the desktop picture in a submenu labelled "Recent Desktop Pictures" Selecting an item from this submenu will set the desktop picture to that file.

Enhancements
- Added a preference pane for turning the contextual menu on and off (and for extending support for other optional features.)

Requirements:

• Mac OS X 10.4 or later.

Finder Browser is a small contextual menu plug-in for the Finder, whose sole purpose is to allow you to quickly and easily browse all of the images in a single folder.
Finder Browser will support a wide range of image file formats and it will be able to display the first page of pdf documents.
Enhancements:
- This is a minor update to add support for WBMP (Wireless Bitmap) images.

OnMyCommand is a Contextual menu for executing Unix commands. Hundreds of commands submitted by users are available in online archive.
With OnMyCommand, its like having hundreds of different contextual menu plug-ins to choose from!
The most powerful and most advanced of all contextual menu plug-ins developed by Abracode.
Command Droplets take the OMC format beyond contextual menus and enable building custom GUI applets wrapping a CLI command or script.
Main features:
- You can create a contextual menu item using UNIX CLI or AppleScript.
- You can control menu behavior via editable command description.
- You can control if a command is to be executed silently, in terminal or with result in output window.
- You may add a path to the clicked file or folder as an argument of your command.
- You may add a selected text or text from clipboard as an argument of your command.
- GUI wrapper droplet application for command-line tool or script can be easily created without programming only by modifying resources
- Custom dialogs can be built using Interface Builder and dialog controls can be linked with scripts.

CMUnzipAll is a contextual menu item plugin for Finder that lets you unzip all the files in the current folder.

To install copy CMUnzipAll.plugin to /Library/Contextual Menu Items.

ClipToWebCM is a nice and useful contextual menu plug-in which tries to open the currently selected text (or clipboard contents if there is no selection) as a URL in your default web browser.

Of course this isnt anything a copy and paste operation cant achieve, but its quicker.