SPACESHIP21
New York City skyline

We Build Insanely High-Performance Websites and Web Apps for the Modern Web.

Founded and run by developers in New York City.

What we do

Our Services

From blazingly fast landing pages to complex enterprise web applications, we engineer digital products that scale and perform.

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Portfolio

Our Projects

View Case Studies

Case studies coming soon — reach out on our contact page.

The Spaceship Difference

Why Spaceship21?

We aren't just designers; we're deeply technical engineers who understand that beautiful pixels mean nothing if the underlying code is bloated, slow, and unscalable.

  • We write clean, strictly-typed code that your future developers will love.
  • We cut out the agency fluff—you work directly with the founders.
  • We obsess over conversion rates, SEO, and web core vitals.
  • We launch on time, every single time. No excuses.

const mission = "Launch fast";

function buildApp(clientRequirements) {

// Eliminate technical debt

engine.optimize(Performance.MAX);

// Ensure pixel-perfection

designSystem.implement();

return "Incredible ROI";

}

await buildApp(yourVision);

Perfect Page Speed Scores

We engineer our projects to pass Google Core Web Vitals with flying colors. Faster load times mean higher conversion rates and better SEO placement.

100
Performance
100
Accessibility
100
Best Practices
100
SEO

Technologies We Use

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Next.js
Supabase
Linear
Stripe
Tailwind CSS
TypeScript
Redis
Medusa
PostHog

Ready to talk?

Fill out the form below and we'll get back to you within 24 hours. Let's build something incredible.