About Us

Who are we?

G-TAC Software was founded by Carsten Schaefer. We are a small team of software developers distributed over various countries.
We work in a loosely coupled team and try to build products that delight our customers.

Why did we start?

DrawerJs is a spin-off of our upcoming application called TheNoteTank.

What do we do?

We are developing a cloud-based, cross-platform application for organizing and sharing notes, TheNoteTank.

As part of this project, we've developed a variety of tools and components, two of which are DrawerJs and ImagerJs. Because we invested a lot of time crafting those components, we decided to also sell them as separate products.


Additionally, we've developed a tool to analyze NTFS permissions on Microsoft Windows® filesystems. We find our NTFS Permissions Analyzer and NTFS Permissions Reporter FolderSecurityViewer to be incredibly helpful and think you might like it, too. Because we are disappointed about the lack of the Microsoft Windows® prnadmin.dll to save and load printer configurations we decided to develop our own .NET Printing Library for managed access to winspool.drv functions.
Carsten Schaefer

Carsten Schaefer

Founder. Loves to build software that people like to use. Carsten prefers clean and intuitive user interfaces over complicated web sites or tools. He is always trying out new ideas to get his work organized. In his spare time, Carsten tries to play rock songs on his guitar.
Marius Schulz

Marius Schulz

Computer science student, software developer, and lover of all things web. In his free time, Marius enjoys lating dancing, reading, and blogging about programming topics.
Sergey Ustimenko

Sergey Ustimenko

Web developer with a passion for new technologies and gadgets. He loves building beautiful UIs and solving complex tasks. Besides work, Sergey enjoys cycling and board games.
Ritesh Gite

Ritesh Gite

An ardent software developer, Ritesh always aspires to learn new things in programming. He adores trekking, photography, and football. He spends his free time reading about technology and science.
Johannes Pfeiffer

Johannes Pfeiffer

As a web developer, working with latest PHP and JavaScript technologies is his passion. Beside that Joe enjoys all pleasant things in life.