Nginx is a free and open source web server. It is very fast web server written by Igor Sysoev a Russian software engineer. The main focus of this web serve is to provide high concurrency, performance and low memory usage. Nigix can be work as application accelerator,media delivery system and reverse proxy server for HTTP, HTTPS, SMTP, POP3. Nginx provide the features of load balancing, HTTP cache,streaming media services,offload concurrency,static content, latency processing,

D3 (Data-Driven Documents) is an open source tool for data visualization in Web documents. By using D3 you can manage the scatter or arbitrary data to document object model. And by using D3 you can apply data-driven transformations to the document. By using D3 you can generate HTML table for different array of numbers. It enhance the life of data by using HTML,CSS and SVG. It provide the powerful visualization components and provide the capability

ERPNext is a well known open source integrated Enterprise Resource Planning (ERP) software solution. It is developed by Web Notes Technologies Pvt Ltd. This open source software written in Python language and used MySQL database for data storage. ERPNext has changed the framework and move to new web framework Fappe. This new framework provide the support of plug-ins and extensions. This software available Software as a Services (SaaS) and in house hosting.

Document Management System (DMS) is a system which is used for track manage and store of electronic documents and electronic images. DMS is a complete cycle process which consist of Creation, Location, Authentication, Workflow, Filing, Distribution, Retrieval, Security, Retention and Archiving. OpenKM is an open source web based document management system. It is a comprehensive full document management application provide the function of metadata, workflow, file history and version control,scanning etc.

Chrome is a free and open source web browser. It is developed by Google and stable public released on December 11, 2008.It support number of operating stems like Linux, Mac, and Windows and also supported mobile devices like iOS and Android. Google used the WebKit layout engine and in 28 version Chrome has used WebKit fork Blink. According to StatCounter Google Chrome has approximately 51% worldwide usage market share. Google Chrome browser maximum source code is open source means every one has a freedom to customize this browser.

AdBlock is an open source content filtering ad blocking extension for browsers. Number of browser are supported this extension like Google Chrome, Apple Safari, Mozilla Firefox, and Opera web browsers. It is not just a ad block extension,it can also used for blocking web tracking bugs and malicious domains. It is very comprehensive app for blocking domains which are host malware and spy ware. It is a free application you can download it