Midday vs Open SaaS vs Nextacular 2026
Three Free Paths to a SaaS Product
The free, open-source SaaS boilerplate market has improved dramatically. Three names come up repeatedly when developers look for a free alternative to paid templates like ShipFast or Makerkit: Midday v1, OpenSaaS, and Nextacular.
All three are free. All three are open source. All three target JavaScript/TypeScript developers. But they are solving very different problems for very different developers.
TL;DR
- Midday v1 (free, MIT) — A sophisticated production architecture reference based on the real Midday SaaS product. Next.js + Supabase + Turborepo + Trigger.dev. Best for experienced developers who want battle-tested patterns. Not a complete SaaS starter — no billing or landing page included.
- OpenSaaS (free, MIT) — The most complete free SaaS starter. Built on Wasp (React + Node.js). Includes auth (5 providers), Stripe + Polar billing, admin dashboard, blog, background jobs, S3 uploads, Playwright tests. Best for developers who will learn Wasp's conventions.
- Nextacular (free, MIT) — A Next.js + Prisma starter focused on multi-tenancy, teams, and workspaces. Pre-built org management, invitations, and per-workspace billing. Limited recent activity.
At a Glance
| Feature | Midday v1 | OpenSaaS | Nextacular |
|---|---|---|---|
| Framework | Next.js (App Router) | Wasp (React + Node.js) | Next.js (Pages Router) |
| Database | Supabase (PostgreSQL) | PostgreSQL (Prisma) | PostgreSQL (Prisma) |
| Auth | Supabase Auth | Built-in Wasp (email + 4 social) | NextAuth.js |
| Billing | No | Stripe, Polar, LemonSqueezy | Stripe |
| Admin dashboard | No | Yes | Yes (basic) |
| Background jobs | Trigger.dev | Wasp built-in | No |
| Multi-tenancy | No | No | Yes (workspaces/orgs) |
| Team management | No | No | Yes |
| Blog | No | Yes (Astro) | No |
| File uploads | No | Yes (S3) | No |
| E2E tests | No | Yes (Playwright) | No |
| Error tracking | Sentry | No | No |
| Monorepo | Yes (Turborepo) | No | No |
| Activity level | Active | Very active | Limited updates |
| Community | Small | Growing | Small |
Midday v1: Architecture Over Features
Who Made It
The Midday team — the creators of Midday.ai, a business OS for freelancers — extracted their production architecture into an open-source starter called midday-ai/v1. This is not a boilerplate built for the boilerplate market; it is the actual codebase patterns from a real, funded SaaS product.
What It Is
Midday v1 is a monorepo starter with a Next.js app, a Supabase backend, and a curated set of production tools:
- Trigger.dev for background jobs (persistent, retryable, schedulable)
- Upstash for caching and rate limiting (Redis, serverless)
- OpenPanel for analytics
- Sentry for error tracking
- Dub for link management
- Biome for linting and formatting (instead of ESLint + Prettier)
These are not the default choices — they are considered choices from a team that evaluated alternatives and chose these for specific reasons. Every tool in v1 is production-tested.
The Gap
Midday v1 is an architectural skeleton, not a complete SaaS. There is no billing integration, no landing page template, no admin dashboard, no pre-built pricing page. You get an excellent foundation and you build everything visible yourself.
Best For
Experienced developers who have built SaaS products before, understand monorepo trade-offs, and want to start with validated production patterns rather than generic defaults.
OpenSaaS: The Most Complete Free Starter
Who Made It
The Wasp team — funded company, 26,000+ GitHub stars — built OpenSaaS as both a showcase for Wasp and a genuinely complete SaaS starter. OpenSaaS v2.0 shipped in July 2025 with a Shadcn UI redesign and significant feature additions.
What It Includes
OpenSaaS is the most comprehensive free boilerplate:
- Auth: Email/password, Google, GitHub, Slack, Microsoft (5 providers)
- Billing: Stripe, Polar.sh, LemonSqueezy (3 providers)
- Admin dashboard: User management, analytics, revenue tracking
- Blog: Astro-powered with MDX
- Background jobs: Wasp's built-in job queue
- File uploads: S3
- Email: SendGrid and Mailgun
- E2E tests: Playwright (added in v2)
- Analytics: Plausible
- AI tooling: AGENTS.md, Claude Code plugin, LLM-friendly docs
This is comparable to what paid boilerplates like ShipFast ($199) include — but free.
The Trade-Off
OpenSaaS is inseparable from Wasp. The .wasp configuration file, Wasp's Actions/Queries system, and Wasp's deployment patterns are all required knowledge. For developers willing to invest in learning Wasp, this is a good trade. For teams that require standard Next.js, it is a dealbreaker.
Best For
Solo founders and small teams willing to learn Wasp's conventions in exchange for the most complete free SaaS starting point available.
Nextacular: Multi-Tenancy as a First-Class Feature
Who Made It
Nextacular is an open-source project focused on a specific gap in the boilerplate market: multi-tenancy with workspace management. Most boilerplates support individual users but require significant custom work to add teams and organizations.
What It Includes
Nextacular ships with a complete multi-tenancy implementation:
- Workspaces: Users can create and switch between workspaces (organizations)
- Invitations: Invite team members to a workspace via email
- Role-based permissions: Admin and member roles per workspace
- Per-workspace billing: Stripe integration scoped to workspaces
- Custom domains: Each workspace can have a custom domain
This is the core B2B SaaS feature set that companies like Slack, Notion, and Linear have. Building it from scratch takes 3-4 weeks. Nextacular provides it out of the box.
The Concern
Nextacular's update activity has been limited in 2024-2025. The codebase uses Next.js Pages Router (not App Router), and the ecosystem has moved. Prisma, NextAuth, and other dependencies may lag behind current versions.
For a new project in 2026, starting with a boilerplate that has limited recent maintenance introduces risk — particularly as Next.js versions advance and dependencies change.
Best For
Developers building B2B SaaS who need multi-tenancy with workspace management and are comfortable with older Next.js patterns (Pages Router).
The Multi-Tenancy Gap in OpenSaaS and Midday
A critical gap in both OpenSaaS and Midday v1: neither includes multi-tenancy. If your product needs teams, organizations, or workspaces, you are building that layer yourself.
| Multi-tenancy feature | Midday v1 | OpenSaaS | Nextacular |
|---|---|---|---|
| Org model | No | No | Yes |
| Team invitations | No | No | Yes |
| Per-org billing | No | No | Yes |
| Role-based access (per org) | No | No | Yes |
| Workspace switching | No | No | Yes |
Nextacular's multi-tenancy is compelling precisely because OpenSaaS and Midday do not offer it. If multi-tenancy is a day-one requirement, Nextacular remains the only free option with it pre-built — despite the maintenance concerns.
When to Choose Each
Choose Midday v1 if:
- You are an experienced developer who has built SaaS products before
- You want production-tested architectural decisions rather than beginner-friendly defaults
- You specifically want Trigger.dev + Upstash + Sentry as your production tooling
- You are building a complex application that benefits from a monorepo
- You will add billing and UI on top of a solid technical foundation
Choose OpenSaaS if:
- You want the most complete free SaaS starter with billing, auth, admin, blog, and tests
- You are willing to learn Wasp's conventions — the framework is the trade-off
- Background jobs are a requirement from day one
- You are a solo founder who wants to skip infrastructure decisions and focus on product
- You want AI coding tool integration built into the boilerplate (AGENTS.md, Claude Code plugin)
Choose Nextacular if:
- Multi-tenancy with workspace management is a core feature, not a nice-to-have
- You are comfortable with Next.js Pages Router and older patterns
- You understand and accept the maintenance risk of a less actively updated boilerplate
- Your team needs workspace-level billing and per-org Stripe integration out of the box
The Honest Summary
If multi-tenancy is not required: OpenSaaS is the recommendation. It is the most complete free boilerplate, actively maintained, and the Wasp framework's batteries-included approach is genuinely productive.
If multi-tenancy is required: Nextacular provides it free, but the maintenance situation deserves serious evaluation. The alternative is starting with OpenSaaS and building multi-tenancy yourself — significant work but on a more current foundation.
If you are an experienced developer building something complex: Midday v1 provides the most sophisticated technical foundation. Budget more time to build the visible product layers (billing, landing page, admin UI) on top.
Key Takeaways
- OpenSaaS is the default recommendation for free starters in 2026: actively maintained, complete feature set (auth + billing + admin + blog), and the Wasp framework's batteries-included approach reduces boilerplate assembly significantly
- Midday v1 is a production architecture reference, not a beginner-friendly starter — its Next.js + Supabase + Turborepo monorepo structure is valuable for experienced developers who want production patterns, not a quick-start
- Nextacular has the only free multi-tenancy implementation in this comparison, but its maintenance cadence (Pages Router, older patterns) is a real risk for products that need to stay current with Next.js App Router
- All three are MIT-licensed and free, but "free" has a hidden cost: no Discord support, no documentation team, and bugs fixed on maintainer timelines, not yours
- The practical decision tree: no multi-tenancy needed → OpenSaaS; multi-tenancy required → Nextacular (with eyes open to maintenance risk) or build multi-tenancy on top of OpenSaaS; complex product → Midday as architecture reference
- For teams considering paid alternatives, ShipFast ($199) and Makerkit ($299) solve the documentation and community support gap that all three free starters have
Methodology
This comparison is based on publicly available information from each project's GitHub repository, official documentation, and community activity as of March 2026.
Looking for paid alternatives to these free starters? StarterPick compares free and paid SaaS boilerplates side by side — so you can find the right foundation for your product.
Review OpenSaaS and compare alternatives on StarterPick.
Further Reading
All three projects in this comparison are open-source — browse the full ranked list of best open source SaaS boilerplates in the StarterPick directory to compare every MIT-licensed starter by framework, features, and community. For a written guide, our best free open-source SaaS boilerplates guide ranks the top options including OpenSaaS, Midday, Nextacular, and beyond. If you are also considering a paid boilerplate, our best SaaS boilerplates guide covers the full market. For the most popular community-driven paid starter as a point of comparison, see our ShipFast review.
The Hidden Cost of Free Starters
Free, open-source starters have a real and often underestimated cost: the time you spend understanding, debugging, and maintaining them when no support team exists.
With OpenSaaS, the Wasp framework adds a meaningful learning curve. If you are new to Wasp, plan for one to two weeks before you are moving confidently. The upside is that Wasp's documentation and the OpenSaaS-specific guides are actively maintained — the Wasp team responds quickly in their Discord and GitHub issues. But "quickly" still means hours or days, not minutes.
With Midday v1, the monorepo structure is the primary learning cost. Turborepo and the package separation between apps/web and packages/* is logical once understood, but it trips up developers who have only worked in single-Next.js-app codebases. The lack of Midday-specific documentation (it is a reference implementation, not a product for sale) means you are reading source code, not following a guide.
With Nextacular, the Pages Router is the biggest friction point for new projects in 2026. If you are starting a new SaaS today, choosing Pages Router means you are starting with a pattern that the Next.js team has deprioritized. Server Components, streaming, and the App Router's data-fetching model are all unavailable. This is not immediately limiting for an MVP, but it accumulates as a technical debt that grows with every Next.js release.
The honest comparison is not "free vs $199" — it is "free + 40 hours of configuration and learning" vs "$199 + 4 hours of onboarding." At any meaningful hourly rate, the paid option is frequently cheaper in total time invested. The best Next.js boilerplates guide covers the paid tier alongside free options with a frank assessment of where the free starters are genuinely competitive and where they are not.