Free Software for Wordpress
Rooftop
Rooftop is a open source and managed, API-only implementation of the WordPress CMS. With Rooftop, developers can harness the power of WordPress and write frontends in any language. Rooftop can be used to build websites, web applications and mobile applications.
WP-CRM
WP-CRM provides a unique customer relations management system that seamlessly integrated into your WordPress control panel. With WP-CRM you can easily manage and store your customers and prospects’ information in your WordPress administrantion panel and MySQL database, giving you the ability of utilizing the vast pool of WordPress plugins to collect, analyze and work with user information.
Constant Contact Forms
Constant Contact Forms allows you to create forms that are clear, simple, and mobile-optimized for every device. Choose forms that automatically select the theme and style of your WordPress site. Customize data fields, so you can tailor the type of information you collect.
Contact Form Builder for WordPress
Contact Form Builder is a popular plugin used to create forms for WordPress-powered sites. With Contact Form Builder for WordPress it's simple to create feature rich forms that can capture contact information and other useful form data.
Imgur
Imgur is a free image sharing and hosting service that is commonly used by people that want to share images on social media. With Imgur users can discover, share and discuss their images with others online.
Contact Form 7
Contact Form 7 is a WordPress plugin that can be used to create and manage multiple contact forms. The plugin allow you to customize your forms and connect them to email to send confirmation emails designed with flexible and simple markup. Contact Form 7 also provides CAPTCHA and spam filtering with Akismet.
BuddyPress
A flexible WordPress plugin for building online communities, teams, and groups with WordPress-powered sites.
bbPress
bbPress is forum software from the creators of WordPress. With bbPress you can quickly setup a forum for asyncronous discussion and subscriptions for your WordPress-powered site.
AddToAny
AddToAny is a universal sharing platform that can be used to integrate content sharing solutions for your website with through widgets or plugins. With AddToAny sharing buttons your content can reach more people through easy sharing to social media platforms. AddToAny provides floating sharing buttons, image sharing buttons, share count and follow buttons that are easily integrated into your code through snippets or plugins designed for specific content management systems like WordPres, Drupal, Joomla and more.
TinyPNG
TinyPNG is a free web-based compression tool for images. With TinyPNG you can compress images (.png, .gif and .jpg) and reduce the file size between 50-80%, without loosing any visual quality and perseving full transperancy. Perfect for people looking to host or share images online via their website. Image file size stands for about 50% of the loading time of a general website, so by decreasing the size of images will have a great impact on performance. TinyPNG also provides various plugins for platforms like Adobe Photoshop and Wordpress.