ZwartWit

We turn ideas into useful software products and services — from early concepts to live products.

See our projects

About

A small software partnership based in the Netherlands.

ZwartWit is a partnership between three individuals, officially registered with the Dutch Chamber of Commerce as ZwartWit VOF. It was founded to provide a collaborative environment where the partners can work together, share knowledge, and learn from one another.

Our goal is simple: launch promising projects and grow them into profitable, sustainable businesses. Some succeed, while others are retired along the way — but every project teaches us something we can apply to the next.

01

Idea

Every project begins with a simple idea — usually something we would want to use ourselves.

02

Build & learn

We turn the idea into a working software product or service, learning as we build.

03

Launch & grow

Promising projects are launched and developed into sustainable businesses.

Projects

What we’ve built so far.

F

FileWhoosh Live

Transfer files directly between various devices — no account or cloud upload required. Choose a file, scan the QR code on your other device, and the transfer begins immediately.

In beta at filewhoosh.com · Android app launching on Google Play · Support: info@zwartw.it

The FileWhoosh web app, with options to send or receive a file
S

Station307 Live

Station307 provides direct, peer-to-peer file transfers without storing files on a server or imposing arbitrary size limits. It offers a flexible web interface, command-line support through curl and wget, and QR codes for transferring files to mobile devices.

Live at station307.com · freshly rewritten after 8 years of service

The Station307 website, with a drag-and-drop area to share a file
M

MappyThoughts Retired

Personalized wall art made from custom-colored maps of locations around the world, printed on canvas. MappyThoughts used OpenStreetMap data and our own rendering pipeline. Although the service is no longer available, much of what we learned while building it shaped our later projects.

Featured on Product Hunt

Close-up of a MappyThoughts canvas print showing a colored city map

Contact

Let’s get in touch.

Have a question about ZwartWit or one of our projects, including FileWhoosh for Android? Email is the fastest way to reach us.

info@zwartw.it