Software directly from the developer

Windows tools designed to do their job really well.

Hi, I’m Christian. I develop software for tasks that make me think: there has to be an easier way.

My tools run locally on your computer, require no subscription, and don’t force you into the cloud for every little thing.

For Windows 10 and 11
rsk.filesEN · Windows

rsk.files · Professional file manager

Local on your PCOne-time licence, not a subscriptionStart without an account
Your task

What would you like to do?

Start with your task. Each card takes you directly to the matching tool or guide.

In focus
rsk.mailbackup

A mailbox is not a backup.

rsk.mailbackup backs up IMAP mailboxes locally on your computer, automatically and in open formats.

rsk.mailbackupEN · Windows
More tools

For tasks that need a clear workflow.

Focused Windows applications that save you work without making your processes unnecessarily complicated.

rsk.filesEN · Windows
rsk.files

A file manager for everything that outgrows a single Explorer window.

Manage local files, networks, archives, remote servers, and cloud storage in two independent panes—with tabs, search, comparison, and synchronization.

rsk.files discover
rsk.dedupeEN · Windows
rsk.dedupe

Detect duplicate files and clean them up with complete control

Finds byte-identical duplicates and visually similar photos, explains recommendations, and moves selected files into recoverable quarantine first.

rsk.dedupe discover

Three more tools, straight to the task.

rsk.guardian

Choose a trigger, define conditions, and decide what should happen to matching files. The workflow then runs automatically.

View product
rsk.rename

Organize hundreds or thousands of files in seconds—with previews, complex rules, presets, regex, JavaScript, undo, and CLI.

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rsk.qr

Choose content, customize the QR code, and export it—for websites, Wi-Fi, contact details, and more, directly on your PC.

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My approach

Why another piece of software, anyway?

I ask myself that question with every new project.

I don’t build a tool just because it is technically possible. There has to be a problem that annoys me, a process that is unnecessarily complicated, or something missing from an existing solution.

Then I start building.

“The software should be easy to understand, perform its core task well, and impose as few restrictions as possible.”
Christian Rüsken
From the developer

I build the tools I would want to use myself.

I’m Christian Rüsken and I have been developing software for many years. My applications should solve a task clearly, without accounts, subscriptions, or unnecessary features.

More about me
Try for free

Just give them a try.

You don’t have to take my word for it. Download the software and find out for yourself.