What applications do you use every day? Your operating system and browser are almost definitely on the list. Maybe it also includes office productivity software, a music or video player, photo editor or certain games. Maybe you need accounting, security, POS and server software for your small business. Or maybe you have a larger business that needs ERP, CRM, ecommerce and content management tools.
These open source options generally cost less than their proprietary alternatives, and many of them have features and capabilities that you won't find in their commercial counterparts. Open source software also gives users more flexibility, because they can alter it or extend it to meet their own needs.
Read the rest of "100 Open Source Apps To Replace Everyday Software" from Datamation.com