WeBeNext
/case-studies/multi-tenant-saas-rebuildshipped Q4 2025

Rebuilding a single-client tool into a SaaS product other companies could sign up for.

LaravelNext.jsPostgreSQLRedis
The problem

The client had a working internal tool built for one company, hard-coded around that company’s data. Every new customer who wanted it meant copying the codebase and customizing by hand — which didn’t scale past a handful of clients.

What we built
  • Re-architected the data model around tenants, so one codebase serves every customer
  • Self-serve signup, billing, and role-based permissions per organization
  • An admin layer for the client’s own team to manage every tenant from one place
  • A migration path that moved existing customers over with no downtime
The result

New customers go from signup to active use in minutes instead of a multi-day manual setup, and the client now runs one codebase instead of maintaining a separate copy per customer.

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