Of the thousands of open source tools, we’ve tried to list the simplest among them. It is not simple to gain this list, particularly because completely different people or professionals have different, personal favorites and choices.

1. Node.js

Node.js is a JavaScript runtime designed on Google Chrome’s V8 JavaScript engine. It’s associate open source cross-platform runtime domain for developing server-side web apps. Node.js uses associate event-driven, non-blocking I/O model, that makes it quicker and a lot more economical. Ryan Dahl, author of Node.js. Its was introduced on May 27, 2009.

2. AngularJS

One of the most popular JavaScript frameworks for dynamic web apps is a AngularJS. It’s preferred for one-page net applications. AngularJS supports filters and data-binding with hypertext mark-up language attributes. It's support for forms, form validation and DOM handling. It absolutely was originally created by Google and open sourced beneath the MIT university license. Developed by Brat tech LLC, Google and also the community, it was introduced in 2009.

3. Brackets

Brackets is a very well-known open source code editor for hypertext mark-up language, CSS and JavaScript. It's developed by Adobe and written in hypertext mark-up language, CSS and JavaScript itself. Brackets makes development quicker, because it supports a live preview of the browser in your editor itself. it was introduced on November 4, 2014.

4. Bootstrap

Bootstrap is definitely free, open source tool renowned for quick development of responsive website designs. it's a group of its own categories and grids, buttons, forms, navigation, containers, media queries and JavaScript extensions. With over 91,000 stars and more than 38,000 forks, Bootstrap is considered as the most-starred project on GitHub.

5. LESS

LESS is a CSS pre-processor, thus it has a syntax that's just like CSS. LESS supports many options that can make your Web development quicker. It provides options that enable variables, mixins, functions and lots of alternative techniques that enable you to create CSS a lot more maintainable , themeable and extendible. It’s developed by Alexis Sellier.

6. Atom

Atom is one amongst the popular text editors presently. Atom developers quote it as, “A hackable text editor for the twenty first century”. Atom is open source and supports cross-platform modification. It's the support of an integral package manager, sensible auto-completion, AngularJS support, Atom TypeScript, Jshint, and turbo-JavaScript, which may be useful for quick Web development.

7. Notepad++

Notepad++ is an open source text and code editor for Microsoft Windows. It provides tabbed modification, syntax emphasizing and code folding for over fifty (50) programming, scripting and markup languages. Notepad++ has enormous community support and plugins. It conjointly supports Macro recording and playback, bookmark and PCRE (Perl Compatible Regular Expression) Search/Replace.

8. XAMPP

XAMPP is also an open source, cross-platform tool, that may be a favorite among net developers. The complete variety of XAMPP is X-Cross platform, Apache, MariaDB, PHP and Perl. Earlier, it used MySQL rather than MariaDB. XAMPP may be a complete package of those libraries, thus developers don’t ought to worry regarding putting in and configuring PHP, MariaDB and Apache. It’s the simplest way to set-up a local web server.

9. Firebug

Firebug is one amongst the well-known tools employed by Web developers. It’s an extension of Mozilla Firefox that facilitates modification, debugging and monitoring CSS, hypertext mark-up language and JavaScript on a live web content. Firebug was developed by Joe Hewitt in 2006.

Its key options are:

• Inspects and edits hypertext mark-up language
• Tweaks CSS to a T
• Visualises CSS metrics
• Monitors network activity
• Debugs and profiles JavaScript
• Quickly finds errors
• Explores the DOM
• Executes JavaScript on-the-fly
• Has work for JavaScript
• Manages cookies

10. Ember.js

Ember.js is an open source JavaScript framework. Developed by Yehuda Katz and was introduced in Dec 2011, Ember.js relies on the model-view-controller pattern. It’s one amongst the favorite JavaScript frameworks for single-page net applications.

We have listed or ranked the most used or well-known open source tools, but we also would like to note that there are more categories to consider like phpMyAdmin, Filezilla, JEdit, YSlow, etc. It’s up to the developer which tool is more beneficial or comfortable to use on his end.