SvelteSaaS is the kind of starter that makes you wonder why you ever built auth from scratch. Everything you need for a production SaaS — authentication, subscription billing, team management, transactional emails — is wired up and working out of the box.
The codebase is remarkably clean for how much it ships. Lucia handles auth with magic links, OAuth (Google, GitHub), and email/password. Stripe integration goes deep: subscriptions with prorated upgrades, usage-based billing, customer portals, and webhook handlers that actually handle edge cases (failed payments, subscription pauses, refunds).
What stands out
The developer experience. You clone, set env vars, and have a working SaaS in under 10 minutes. The Drizzle schema is well-organized, migrations are clean, and the Supabase Postgres setup means you’re not fighting infrastructure on day one.
Team management is a pleasant surprise — invite flows, role-based access (owner/admin/member), and per-seat billing are all pre-built. Most starters punt on multi-tenancy; this one embraces it.
Where it could improve
The admin dashboard works but doesn’t match the polish of the rest of the app. The UI components are shadcn-svelte, which is a solid foundation, but the default styling feels developer-functional rather than customer-ready. You’ll want to customize the look before showing it to users.
No internationalization support. If you’re building for a global audience, budget time for adding i18n yourself.
Tech Stack
Strengths
- Excellent documentation with video walkthroughs
- Clean, modular codebase — easy to remove what you don't need
- Stripe integration handles subscriptions, one-time, and metered billing
- Active Discord community with fast support
Weaknesses
- Opinionated stack — switching from Drizzle to Prisma requires work
- No i18n out of the box
- Admin dashboard is functional but visually basic
Best for
Developers launching a B2B SaaS who want to skip 2-3 months of boilerplate
Not ideal for
Simple landing pages or content sites — too much machinery