This is the post where we are listing out few great free tools for Mac Operating System, this is an exclusive post for our those readers who are the Mac users. But our other readers will also enjoy this post. Don’t forget to bookmark this post for your future reference as it has few most useful and free application that will be helpful for you when you are on your Mac system. This is absolutely a great list of 21 Free Apps For Mac OS X That Are Absolutely Useful.

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Name Mangler

Name Mangler is a batch file renamer that supports all common renaming tasks: Find and Replace (including support for regular expressions); Number Sequentially; Change Case; Set Extension; Add Prefix/Suffix; Remove/Insert Characters.

Backdrop

Backdrop is a simple utility to fill your screen with a giant blank window. Fill the window with a solid color or a custom image, your choice.

Service Scrubber

With Service Scrubber, you can restructure the services menu, change service keyboard shortcuts, disable and re-enable services.

iClockr

iClockr is focused to show you a simple way to track your time.

EverSave

EverSave is a clever tool which allows you to save all of your documents – if possible – in a specific time interval or by changing the frontmost application.

SyncMate

SyncMate FREE Edition is a perfect solution for information management. It is easy-to-use synchronizer for Mac and Pocket PC, that will help you keep all your documents, text messages, contacts, calendar entries and events and other stuff well organized.

Paparazzi

Paparazzi is a small utility for Mac OS X that makes screenshots of webpages. This will help you to temporary access to the WebView for username/password info, so capture of pages behind a required login is now possible.

AppFresh

AppFresh helps you to keep all applications, widgets, preference panes and application plugins installed on your Mac up to date. All from one place, easy to use and fully integrated into Mac OS X.

NetNewsWire

NetNewsWire has a familiar three-paned interface and can fetch and display news from thousands of different websites and weblogs.

Pref Setter

Pref Setter is an application used to edit plist (Property LIST) files, geared towards viewing / editing Mac OS X’s preference files. Very useful for setting those “hidden” preference settings that aren’t available directly in an application.

Skim

Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file.

OnyX

OnyX allows you to verify the Startup Disk and the structure of its System files, run miscellaneous tasks of system maintenance, onfigure some hidden parameters of the Finder, Dock, QuickTime, Safari, Mail, iTunes, Login window, Spotlight, and many of Apple’s applications.

Witch

Witch lets you access all of your windows by pressing a shortcut and choosing from a clearly arranged list of window titles.

Cyberduck

Cyberduck is an open source FTP, SFTP, WebDAV and Amazon S3 browser for the Mac. It features an easy to use interface that allows to toggle between bookmarks and the browser outline view.

Syrinx

Syrinx is a fully customizable twitter client designed for Leopard. Syrinx is built from two ideals efficient workflow and customization.

Visual NetTools

Visual NetTools is a set of network scanning, security, and administrator tools for Apple Mac useful in diagnosing networks and monitoring your computer’s network connections.

Deeper

Deeper allows you to enable and disable the hidden functions of Finder, Dock, Dashboard, Safari, Login window and many Apple’s applications.

Burn

Namely

Namely is possibly the fastest way to open applications. And unlike some other launchers, it doesn’t require any learning.

Punakea

Punakea is a little app trying to help you cope with the day-to-day struggle of managing your files. Designed to complement Spotlight, it allows you to tag your files and bookmarks.