OpenSaaS alternatives
An open-source SaaS starter kit that helps you build, launch, and monetize full-stack apps fast.
OpenSaaS compared with its alternatives on free plan, learning curve and setup time
| Yes | Medium | Under 5 minutes to get started; MVP deployable in days | |
 SupabaseOpen-source Firebase alternative with PostgreSQL, auth, storage, and realtime APIs. | Yes | Medium | 5-10 minutes |
 FirebaseGoogle's app development platform with auth, Firestore, hosting, and serverless functions. | Yes | Easy | 5-15 minutes for basic setup |
 RefineAI-driven platform designed to accelerate the development of enterprise internal tools and B2B applications. | Yes | Easy | — |
| — | — | — | |
| Yes | Easy | — | |
| No | Medium | Minutes to running | |
 BuilderBoxBuilder Box helps developers launch full-stack SaaS apps faster with ready-to-use auth, payments, and AI tools. | No | Medium | 15-30 minutes |
 DirstarterDirectory website boilerplate with built-in monetization, ads, Stripe payments, and SEO tools. | No | Medium | Minutes to hours depending on customization |
 GravityGravity helps you launch a SaaS fast with auth, payments, and dashboards ready. | Yes | Medium | Minutes with setup wizard; full SaaS running in hours |
 HugoOne of the most popular open-source static site generators, written in Go and designed for speed and flexibility. | Yes | Medium | 5 minutes |
| Yes | Medium | Unknown | |
 MakerkitMakerkit helps you launch SaaS apps faster with ready-made starter kits. | No | Medium | Under 5 minutes |
How these alternatives were chosen
Tools OpenSaaS names as alternatives that this directory also publishes, followed by others in Boilerplate. The order is not a ranking, and "—" means we have not checked that field — not that the answer is no.
OpenSaaS also lists Clerk + Next.js template, Blitz.js as alternatives. Those are not in this directory yet, so there is nothing to compare — and nothing to link to.