An ever-growing toolbox of free online
applications for design, art, development
and everyday life.

  1. Color Converter

  2. Music Scale Finder

  3. Placeholder Images

  4. My IP

Missing an application? Let us know what you have in mind.

Recent Blog Articles

Some great books for programmers that StackOverflow cannot replace

Here is a list of very good books that you might want to read if you are a programmer, or intend to become one. They will teach you many things about general reasoning, testing, command line utilities , management and more.

The problem with loops in tests

I have used loops in tests many times. Sometimes for iterating through an array of inputs, sometimes an array of tuples with an input and the expected output. It is a very convenient and dry way to code a test when you want to test against a lot of cases. But there is a problem with this approach.

Elm type declarations demystified

While trying to learn Elm, I came across a few concepts that were not easy to grasp. Especially when it comes to types and the syntax. I struggled with the difference between type and type alias. I struggled with understanding what was going on in a type declaration. I also struggled with the many different things that are written in module-case and separate them. We will try to answer all these questions here.

Convert images for web using the Sips command line on MacOSX

We will see how to convert a folder of images to make them safe for web using the Mac OSX command line tool Sips. First in a shell script and then an Applescript version if you want to share this functionality with less technical users.

Zshell version of the flasher function

The flasher function is just a small command which flashes your screen until you press any key. It is usually put at the end of a long running process in order to indicate that the job is finished.

Applescript to show unread emails in the terminal

If you are on OSX and use Mail.app, but work a lot in the command line and would like a simple command to print a summary of unread emails, then this post is for you.