Sander
Kleijnen
Developer & entrepreneur building digital products that matter. Founder of Outpace, creator of Huntd & Stashd.
Building things
people actually use
I'm a 19-year-old developer and entrepreneur from Zuid-Limburg. I study HBO-ICT at Zuyd Hogeschool while building real products on the side — because waiting until graduation to start isn't part of the plan.
I build with Next.js, Tailwind, and Framer Motion. My agency Outpace delivers websites for local businesses. My apps Huntd and Stashd solve problems I ran into personally.
Currently building
Active projects
From idea to product
Every project starts with a problem nobody's solved yet.
Stashd
Gamified budget tracker — Duolingo for your wallet. Challenges, rankings, and savings goals that make managing money actually fun. Built for the Dutch market.
The next problem worth solving. Always building.
Things I've built
Outpace
Web design agency for local businesses
B2B web design and lead generation for local businesses in Zuid-Limburg. Demo within 24 hours, live website within a week. Built a cold outreach pipeline that reaches 95+ prospects via WhatsApp, email, and in-person visits.
City-scale outdoor games for up to 20 players. First game: Jachtseizoen — GPS-based manhunt. Live lobbies, real-time player tracking, role reveals, and a countdown timer. Built because this kind of app simply didn't exist.
Stashd
Gamified budget tracker with challenges, savings goals, and a leaderboard. Built for people who want to get better with money without staring at boring spreadsheets.
What I work with
Let's build
something great
Need a website for your business? Have a collaboration idea? I'm always open to interesting conversations.