Rotterdam · Entrepreneur · Builder

Rinse Nieboer

Building practical tools and platforms — independently, from scratch, built to last.

About

Who I am.

Years old

Live products

010

Rotterdam

—

Always building

I'm Rinse Nieboer — a 21-year-old entrepreneur and builder from Rotterdam. Independent mindset, composed under pressure, and accountable for everything I do.

Entrepreneurship Product building AI & automation Investment Coaching Korfball Rotterdam

Projects

What I've built.

Four products, built independently. Each solves a real problem.

justmyplan

Smart planner — tasks, calendar and AI in one place.

Visit More →

justanopinion

Sharp opinions on entrepreneurship, tech and the world.

Visit More →

justfigured

Real lessons from real experience — no shortcuts.

Visit More →

justabook

Clean document editor — write without the noise.

Visit More →

Contact

Get in touch.

r.j.nieboer@outlook.com

06 44 23 69 21

Download CV