Greepit previously shared HybridAuth, a PHP library which offers website user authentication for social networks and popular sites.

Today, we are sharing Opauth, a multi-provider user authentication framework for PHP. It enables PHP applications to do user authentication with ease.

Opauth provides a standardized method for PHP applications to interface with authentication providers.

Opauth as a framework provides a set of API that allows developers to create strategies that work in a predictable manner across PHP frameworks and applications.

Screenqueri.es is a Pixel Perfect Tool to test your Responsive Design / Media Queries. Select from Pre-defined Screen Resolutions OR Drag Screen Handles To Go With Your Custom Screen Resolutions.

With a valid site URL this responsive design testing tool shows how the design adapts to the screens of various devices.

Fontomas is a handy free web application which helps to combine iconic webfonts for your project. With fontomas you can:

• Make a limited symbols subset, with reduced font size
• Merge symbols from several fonts to single file
• Access large collections of professional-grade open source icons

Now it’s trivial to customise fonts for your needs with 3 simple step. At first, you select needed symbols on source fonts. Then rearrange those on destination font. After that, you can download SVG font and make webpack via fontsquirrel generator or other services.

Mobjectify simplifies the task of getting up a quick mockup of your mobile website or webapp.

Use the bundled widgets, to generate a prototype for your site in just a few minutes. Which means you can experiment with actually running designs rather than paper layouts or wireframes.

No knowledge of coding in HTML or Javascript is required, but all your designs are styled using jQuery Mobile which means you can always build up to complex feature rich applications.

Being a web developer and crazy coder, I have a couple of ‘must haves’ at my desk  - a mug of coffee, dual-display setup and a couple of crib sheets – HTML 5, CSS3, JavaScript etc. Crib sheets serve as quick reference guide to help me instantly find syntax and attributes when I am stuck. Just like my personal crib sheets, InstaCSS provides an online quick reference guide for CSS properties and attributes.

Highly recommended for web designers and developers! Also check out CSS3files – a comprehensive reference guide for CSS3.

Typography is the art / technique of arranging type in order to make language visible. The arrangement of type involves the selection of typefaces, point size, line length, leading (line spacing), adjusting the spaces between groups of letters (tracking) and adjusting the space between pairs of letters (kerning).

Gridlover is a web app for building a vertical rhythm for your web typography. It has interactive sliders and will spit ready-made CSS for you.

CanvasLoader is a lightweight JavaScript UI library, which uses the HTML5 Canvas element to draw and animate circular preloaders / spinners.

This free tool helps you to create slick preloaders / spinners for your projects.

When it comes to developing websites or applications for the web, there are 101 ways to speed up your development cycle by embedding ‘ready-made’, free and open source resources in your project. It actually saves a lot of time and effort that you would otherwise spend on tasks that do not related to your core requirements. For instance, I would abhor creating buttons for my application or website for each new project. I would rather generate them instantly using free, online tools like CSSButton.

CSSButton is an online tool for web professionals for creating usable and stunning CSS3 buttons. It is also a learning tool, to help people understand visually how their CSS is going to work out.

You have 3 different options to start from:

• Create from scratch
• Use templates
• Try CSS button generator

The CSS builder will help you style just about any element you’d like to transform into CSS, however it has been tailored to buttons with pseudo classes, transitions, and more.

JPEGmini is a photo recompression technology, which reduces the file size of photos by up to 5X, without affecting their perceptual quality.

The JPEGmini guys have recently launched an online JPG optimizer service at JPEGmini.com, which enables users to process an unlimited number of photos for free using our JPEGmini technology.

The best part is that the resulting files are completely JPEG compatible, so they can be viewed on just about any device on the planet.

Web fonts bring more elegance and vibrancy to the website design. Sometimes you may come across websites using cool web fonts and may want to know what font is that.

Fount is a bookmarklet which tells you that what font is in your font-stack. All you have to do is drag Fount bookmarklet in your browser, go to any web page and click on the Fount bookmarklet, click on the text anywhere on the web page and it will display what font is used along with the font size and weight.

Fount is a small yet handy tool for quickly identifying fonts used on websites.