Home Tools Single-Tenant vs Multi-Tenant
Single-tenant or multi-tenant?
Let your requirements decide.
It's one of the earliest and most consequential SaaS architecture calls: give every customer their own isolated stack, share one stack across all of them, or blend the two. This free tool weighs your isolation needs, customer profile, customization depth, scale and team against each option — and recommends single-tenant, multi-tenant or hybrid. The reasoning is shown in full, computed only from your answers.
Answer all seven to unlock your result.
Side by side
| Dimension | Single-tenant | Multi-tenant | Hybrid |
|---|---|---|---|
| Data isolation | Strongest — each customer has a dedicated database and instance; nothing is shared. | Logical — customers share infrastructure, separated by keys/row-level rules in code. | Shared by default; dedicated instances for customers who require hard isolation. |
| Cost per customer | High — you run and pay for separate infrastructure per customer. | Low — infrastructure and its cost are amortised across everyone. | Medium — cheap shared base, premium cost only for the isolated few. |
| Customization | Deep — per-customer schema, features and integrations are straightforward. | Limited — everyone runs the same code; customization is config within guardrails. | Flexible — shared core for most, bespoke work for isolated instances. |
| Maintenance & releases | Heavier — updates, migrations and monitoring multiply per instance. | Simplest — deploy once, everyone gets it; one stack to watch. | Two paths to run; more operational surface than pure multi-tenant. |
| Scalability | Scales by adding instances — linear cost and ops overhead. | Scales efficiently to many customers on shared, elastic resources. | Scales the many cheaply; handles the few heavy accounts separately. |
| Best fit | Regulated or enterprise buyers, few high-value accounts, deep custom needs. | SMB/self-serve, high volume, lean team, standardised product. | A mixed book — mostly SMB with a handful of enterprise/regulated accounts. |