Recently I spent some time working on my own JavaScript playground called Demoit. Something like CodeSandbox, JSBin or Codepen. I already blogged about why I did it but decided to write down some implementation details. Everything happens at runtime in the browser so it is pretty interesting project.

If your users deal with images (photos, product images, etc.) it will be great if they have the ability to apply some basic editing after upload, e.g. adjust brightness and contrast for sharper view, crop, add some text, etc. However, if image editing is not the primary feature of your product, the profit from investment in such secondary feature won't cover the costs. Integrating a 3rd party image editor appears to be a wiser choice.

As an interpreted language, JavaScript is filled with hidden performance issues that conspire to slow down your code and ruin the user experience. Learn exactly what is fast, what is slow, and what you can do to squeeze that last bit of performance out of your JavaScript code.

A layer-by-layer deconstruction of "Flowing Meditation," part of REBIRTH of GAEA, an epic visual tapestry delicately interweaving reflections on the environment and spirituality through the rich imagery of Greek Mythology.

There are dozen of JavaScript WYSIWYG editors available, but most of them are too complicated and a little bit buggy. From time to time I'm using my own tool to provide such kind of functionality. It accepts and exports valid html. I decided to share it with you and explain how I built it.

I know that you've met this problem. You have a lot of bitmaps in your library and you have to edit all of them one by one. There are several solutions of this problem. One of them is to use JSFL. There is another one - an extension for Flash provided by ArsThanea. Check it out here.