jPanelMenu is a jQuery plugin that creates panel menus like those of iPhone apps.

The thorough plugin features animations, keyboard shortcuts, and even easing effects along with a powerful API.

Even though it’s bloated with features, jPanelMenu does seem to be easily implementable so its options, callbacks and the ever-mighty API are more than welcome.

Duri.me is a little and straightforward app that converts images to Base64 files to reduce the amount of requests to the server.

The images can be embedded into HTML as strings of characters (the Base 64 is an encoding used to prevent data loss).

Duri.me allows for a straightforward way of implementing images directly into HTML, thereby reducing page load times.

Roadcrew.js is a library that adds page switching capability to single-page web applications.

Roadcrew can be paired with something like Apache Cordova to increase performance by removing the need to reload the page.

Roadcrew has some nifty features, such as ‘intercepting pages’ — when a page is loaded, another one appears while it loads, and so on.

Social Auth is a social authentication solution based on social networks.

Social Auth offers a convenient way for users to log in with social networks. Once the user has logged in, you can then store the information in a database.

This solution can be developed on several apps and supports Twitter, Facebook and Google Plus.

Garlic.js is a library that preserves form values locally with localStorage.

The data stored locally is destroyed upon submitting the form. Browser support is admittedly scarce, but then again, the world has to move on.

Garlic seems like the perfect plugin to implement in a forum/comment system — we’ve all had a time when we’ve spilled our hearts out refuting a non-believer and the text becomes lost once we accidentally hit backspace out of the input context…

Responsive Img is a jQuery plugin for adding responsive image capability to your designs.

Responsive Img uses jQuery + a PHP file to resize images on the fly. There’s no need for extra HTML or CSS markup as the plugin is called upon images you want to be resizable.

Alternatively, you can update the markup a bit to decrease page load times.

ByPeople, a design website yet to be released to the public, is giving away a huge pack of design goodies.

The free stuff includes all things design: CV templates; divisors; textures; social icons; sliders; patterns; etc.

Your email is requested, and they’ll probably send an email upon the website’s opening. It should be worth it, however.

Long Press is a jQuery plugin for easily adding ‘alternate key’ functionality to web inputs.

The idea is the same like in iOS or Android, but with some nifty features that make it viable for the desktop.

When the user holds a key for a longer amount of time, the above menu appears that can be controlled with arrow keys, the mousewheel or the mouse.

This adds much-needed special character functionality to inputs, which is very welcome for international projects.

Heyoffline.js is a JavaScript library for warning your users when their connection is interrupted.

It’s an MIT-licensed solution for notifying your users in case they go offline, so as to prevent them from losing something.

Again, you can implement such a solution anywhere from forums to guestbooks and collaborative interfaces. Heyoffline is a stand-alone library.

Batch is an icon set for web & UI design full of good stuff you can use in any project.

They’re available as PhotoShop shapes, so you can resize them without losses.

These generic icons fit for anything from user interfaces to witty designs and, in the end, you may even do some artwork with them — they’re free!