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Open SaaS alternatives

7 SaaS kits compared with Open SaaS on price, license, framework and features.

About Open SaaS

Open SaaS (React, free) - A free, open-source SaaS starter with auth, payments, and an admin dashboard built-in. Best for: Developers who want a fully open-source, no-vendor-lock-in SaaS starter with payments and an admin dashboard already wired up.

The usual reason to look elsewhere: you don't want to learn the Wasp framework layer underneath React/Node - it's not a plain React/Next.js codebase.

KitFrameworkPriceStarsBest for
Open SaaSReactFree16,224Developers who want a fully open-source, no-vendor-lock-in SaaS starter with payments and an admin dashboard already wired up.
VolcaReactPaid-Teams wanting a serverless AWS-native SaaS stack (React + Node.js) with multi-tenancy and Stripe billing already wired up.
Next.js SaaS StarterNext.jsFree16,088Teams that want to read and own every line of their SaaS foundation instead of adopting a paid kit's abstractions, and don't mind upgrading Next.js versions themselves.
MakerKitNext.jsFree, paid from $349465A small team committing to a multi-tenant B2B product for the long haul, who will get their money back from the monorepo structure, test setup and RBAC rather than from launching this weekend.
Full Stack FastAPI TemplateFastAPIFree46,132A Python-first developer or small team building an internal tool or data-heavy web app who wants FastAPI, Postgres, auth, tests and CI already connected, for free.
GoShipGoFree457Go developers who want a batteries-included, HTMX-driven SaaS boilerplate with billing, notifications and PWA support, avoiding a JS frontend framework entirely.
Apptension SaaS BoilerplateDjangoFree3,026Teams that want a completely free, actively-starred Django+React SaaS foundation with GraphQL, real-time features, and enterprise SSO already wired in.
Ultimate BackendNestJSFree2,903Teams building an enterprise-scale, multi-tenant SaaS backend who specifically want a microservices/CQRS/event-sourcing architecture rather than a monolith.

Volca

React · Paid

Best for: Teams wanting a serverless AWS-native SaaS stack (React + Node.js) with multi-tenancy and Stripe billing already wired up.

Compared with Open SaaS

  • Paid, where Open SaaS is free.
  • Closed source - you can't read the code before buying, unlike Open SaaS.
  • Lists multi-tenancy, which Open SaaS doesn't.
  • Doesn't list an admin dashboard, a blog/CMS and end-to-end tests, which Open SaaS has.

You want a self-hosted or non-AWS deployment target, or need public source code before buying.

Next.js SaaS Starter

Next.js · Free · 16,088 stars

Best for: Teams that want to read and own every line of their SaaS foundation instead of adopting a paid kit's abstractions, and don't mind upgrading Next.js versions themselves.

Compared with Open SaaS

  • Built on Next.js rather than React.
  • Lists teams/organizations and role-based access, which Open SaaS doesn't.
  • Doesn't list an admin dashboard, a blog/CMS and end-to-end tests, which Open SaaS has.

You need multi-tenancy beyond owner/member roles, i18n, transactional email or a test suite out of the box, because this ships none of them and you will be building each one yourself.

MakerKit

Next.js · Free, paid from $349 · 465 stars

Best for: A small team committing to a multi-tenant B2B product for the long haul, who will get their money back from the monorepo structure, test setup and RBAC rather than from launching this weekend.

Compared with Open SaaS

  • Free, paid from $349, where Open SaaS is free.
  • Built on Next.js rather than React.
  • Lists multi-tenancy, teams/organizations, role-based access and i18n, which Open SaaS doesn't.

You do client or agency work - the Pro license bars it outright, and Team License client work still requires each client to hold their own license. Open-sourcing your build is barred too.

Full Stack FastAPI Template

FastAPI · Free · 46,132 stars

Best for: A Python-first developer or small team building an internal tool or data-heavy web app who wants FastAPI, Postgres, auth, tests and CI already connected, for free.

Compared with Open SaaS

  • Built on FastAPI rather than React.
  • Lists tests, which Open SaaS doesn't.
  • Doesn't list built-in payments, subscriptions and a blog/CMS, which Open SaaS has.

Skip it if you need Stripe billing, subscriptions, social login or multi-tenant teams out of the box, because none of those is in the feature list and you'd be building the SaaS layer yourself.

GoShip

Go · Free · 457 stars

Best for: Go developers who want a batteries-included, HTMX-driven SaaS boilerplate with billing, notifications and PWA support, avoiding a JS frontend framework entirely.

Compared with Open SaaS

  • Built on Go rather than React.
  • Lists background jobs, which Open SaaS doesn't.
  • Doesn't list an admin dashboard and a blog/CMS, which Open SaaS has.

You want a React/Vue-driven frontend or a more mature/widely-adopted Go starter with polished documentation - GoShip's docs are still a work in progress.

Apptension SaaS Boilerplate

Django · Free · 3,026 stars

Best for: Teams that want a completely free, actively-starred Django+React SaaS foundation with GraphQL, real-time features, and enterprise SSO already wired in.

Compared with Open SaaS

  • Built on Django rather than React.
  • Lists multi-tenancy, role-based access and background jobs, which Open SaaS doesn't.
  • Doesn't list an admin dashboard, a blog/CMS and end-to-end tests, which Open SaaS has.

You want a simpler REST-only stack, or you're not prepared to run and maintain a GraphQL/Apollo layer alongside Django.

Ultimate Backend

NestJS · Free · 2,903 stars

Best for: Teams building an enterprise-scale, multi-tenant SaaS backend who specifically want a microservices/CQRS/event-sourcing architecture rather than a monolith.

Compared with Open SaaS

  • Built on NestJS rather than React.
  • Lists multi-tenancy and role-based access, which Open SaaS doesn't.
  • Doesn't list an admin dashboard, a blog/CMS and end-to-end tests, which Open SaaS has.

You want a simple monolithic starter - Ultimate Backend's microservices/CQRS architecture is a significant complexity and operational overhead for smaller projects.

Still deciding? Read the full Open SaaS review, browse every SaaS boilerplate, or see how to choose a boilerplate.