EditorConfig

EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs. The EditorConfig project consists of a file format for defining coding styles and a collection of text editor plugins that enable editors to read the file format and adhere to defined styles. EditorConfig files are easily readable and they work nicely with version control systems.

This looks useful for open source projects (and companies where everybody chooses its own editor).

Sozi

Sozi is a zooming presentation editor and player.

Unlike in most presentation applications, a Sozi document is not organised as a slideshow, but rather as a poster where the content of your presentation can be freely laid out. Playing such a presentation consists in a series of translations, zooms and rotations that allow to focus on the elements you want to show.

If you ever need your own local Prezi, this is an option.

CodePen

Front End Developer Playground & Code Editor in the Browser

ChanSort

TV channel list editor for Samsung, LG, Panasonic, Toshiba and VDR

Pretty useful. Safes a lot of hassle with the TV remote.

AsciidocFX: Asciidoc Book Editor based on JavaFX 8

Asciidoc FX is a book / document editor to build PDF, Epub, Mobi and HTML books, documents and slides.

Quite useful for Asciidoc-related work on Windows. Works on Linux and Mac as well.

Lossless Cut

Simple, cross platform video editor for lossless trimming / cutting of videos. Great for rough processing of large video files taken from a video camera, GoPro, drone, etc. Lets you quickly extract the good parts from your videos and discard GB of data without losing quality. It doesn't do any decoding / encoding and is therefore extremely fast.