Hello, my name is Jan, I'm a self-taught coder, designer and music lover!
On this personal space you can find Github work examples, a managed Bandcamp Top 500 chart list and little more information. I am also available for hire.

If you want to get in touch, leave a message.

In case you like my Open Source software you can contribute with code at my Github pages at Github. Also you can provide financial support using PayPal.me: https://paypal.me/dwroxnet.

Flag Cookies browser add-on

A cookie manager allowing to manage explicitly domain cookies, also third-party cookies for domain and subdomain. Providing several modes to manage cookies and keeping a cookie profile, while being logged in in a website.

Usage in short:

1) Use "Global mode" if you are surfing, this will remove all kind of cookies while you browsing the web if not protected by "profile mode".

2) Use "Auto flag" settings which will remove all cookies for one website - this can be useful if you only want to automatically remove these page cookies also if you revisit the website later again, this setting is stored for the website.

3) Use "Profile mode" either globally for a website, protecting all cookies of that domain if nothing no cookies are picked. Or protect single cookies even when "Global flag" or "Auto flag" modes are active.

Privacy Policy for Flag Cookies

  • I do not sell your data to third parties
  • I do not use or transfer for purposes that are unrelated to the item's core functionality
  • I do not use or transfer your data to determine creditworthiness or for lending purposes

If you have any questions about this Privacy Policy, You can contact me:

Add-on listings and download: Firefox |  Opera |  Chrome

Flag Cookies documentation and help

Flag Cookies at Github

Screenshot of Flag Cookies

A redesigned grid based approach to layout web pages in a Electron app or inside the browser: Live playground on Github.

More information about the development and feedback can be found at NGB.to ReLayX2 Thread in German language.

Please read the help by pressing 'i' key which displays more detailed information on how to use ReLayX.


super quick way to manage storages and inventories. A support thread and development information can be found at NGB.to - sqStorage Thread in German language.



Browse the Bandcamp 500 top charts

My Bandcamp profile

Github samples.


Firefox and Opera (and Chrome) addon to quickly view direct image links in Google Image Search.

Add-on listings and download:
Firefox |  Opera |  Chrome


Allows styling with css like markup of a canvas driven bookpage layout engine. A live demo can be found here.


javascript based pi number analyze tool for finding similarities and such, demo here


xml/wikipedia dump parser written in C


advanced conway game of life simulator written in C


A HTML5 moonlander version writte for a coding competition at @ NGB.to: Play online
Use WAD or Arrow keys to control the boosters. Press Space to start or restart the game.

Kisslib / KissEbook

kiss principle ebook quick launcher for Linux

You like my Open Source software? You can contribute at Github or by providing financial support using PayPal.me at https://paypal.me/dwroxnet.