Pixel Labs
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Digital product

From idea to billing SaaS in under 90 days.

We build complete web apps and SaaS platforms with product rigour and agency speed. Authentication, billing, dashboards and APIs from day one.

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Building a SaaS is not building a bigger website. It is a different discipline: domain modelling, user management, recurring subscriptions, permissions, webhooks, queues, billing, observability. At Pixel Labs we have done that since 2020. We have launched products from idea to the first million in ARR.

We work well when a technical founder comes to us with a clear vision and wants help materialising it fast. Also when there is existing business to digitise with an internal tool or a customer-facing platform.

What our standard MVP includes

When we say "MVP in 12 weeks" we mean it. This is the baseline scope:

  • Registration and login with email/password, magic link and Google OAuth
  • Recurring billing with Stripe (trial, upgrades, downgrades, cancellation)
  • User area with profile, billing, team and settings
  • Admin panel for your team (user management, support, metrics)
  • Documented REST or tRPC API
  • Transactional emails (welcome, recovery, receipts) with Resend
  • Observability (Sentry, Logtail, uptime)
  • Automated deploy on Cloudflare or Vercel with preview environments

Justified technical decisions

For every project we deliver an architecture document with justified technical decisions: why PostgreSQL and not MongoDB, why Next.js and not Remix, why Cloudflare and not AWS. No "because" or "it is trendy". Every decision has an explained trade-off.

That helps you, but mostly it helps the team that takes over when you grow and hire a CTO or in-house team. Your next technical hire will thank you.

What we build

MVPs and early products

Viable initial versions in 8–12 weeks, with real functionality to land first customers.

Multi-tenant SaaS

Platforms with per-customer data isolation, subscription plans and permission management.

Dashboards and internal panels

Internal tools for operations teams: BI, custom CRM, ticketing, backoffice.

Customer portals

Private area with billing, support, resource downloads and customer customisation.

Complex integrations

Connectors to ERPs, CRMs, gateways, logistics providers or third-party APIs.

Product redesign

If you already have a SaaS but have outgrown the current provider or need to scale technically.

Why choose us

Real MVP in 12 weeks

We ship usable product, not prototypes. With real users and real payments.

Baseline security

OWASP Top 10 covered, rate limiting, auditing and roles from the first sprint.

Real multi-tenant

Schema-based or row-level security isolation in PostgreSQL. No mixed data.

Stripe done right

Subscriptions, trial, dunning, upgrades, seat-based, usage-based. Everything a modern SaaS needs.

Scalable architecture

PostgreSQL, Redis, queue workers, CDN. Ready to grow without rewriting.

Product metrics

GDPR-compliant product analytics with PostHog or self-hosted Plausible.

How we work

  1. 01

    Discovery

    Two weeks of analysis: problem, user, competitors, pricing model. We deliver a product document.

  2. 02

    Wireframes and flows

    We design critical flows in Figma. We validate with 3–5 potential users before coding.

  3. 03

    Technical architecture

    Database, API and infrastructure design. Argued decisions in a shared document.

  4. 04

    Development sprints

    2-week sprints with Friday demo. Early access for internal users from week 4.

  5. 05

    Private beta

    Invite 10–30 users, systematic feedback collection, prioritised fixes.

  6. 06

    Public launch

    Go-live, monitoring, on-call first week. Continuous iteration on real data.

Frequently asked questions

How much does it cost to build a SaaS?
A complete MVP with authentication, billing and base functionality costs between €25,000 and €60,000 depending on complexity. A mature product with integrations and advanced multi-tenant typically goes from €60,000 to €150,000. We always quote with a fixed scope after discovery.
Can we start without knowing everything?
Yes — that is exactly what discovery is for. No SaaS project starts with a locked scope from day one. Our job includes helping you decide what belongs in the MVP and what goes into v2.
What stack do you use for SaaS?
For 80% of cases: Next.js 15 (App Router) + PostgreSQL + Prisma + tRPC + Stripe + Cloudflare. For very technical cases we add workers in Go or Python. Each decision is justified in an architecture document.
Do you keep the code afterwards?
No. The repository, IP of the code and the data are always yours. We sign NDAs and assignment agreements from day one.
Do you also do UI design?
Yes. We have product designers in the team. We deliver a complete Figma with design system, components and variants. We can also work with your design team if you prefer.
What happens after launch?
We offer a monthly evolution plan with development hours reserved for new features, bugs and improvements. Alternatively, we train your in-house team and hand over the project gradually.

Ready to start?

Tell us your case and get a concrete proposal within 48h.

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