Best Next.js SaaS boilerplate in 2026: an honest buyer's guide

If you are paying for a Next.js SaaS boilerplate in 2026, you are buying a weekend back. The wrong pick costs you that weekend plus a month of fighting someone else's conventions. This guide compares the boilerplates buyers ask about most - ShipFast, Makerkit, Supastarter, and Boilerlykit - on the axes that actually decide "did this save me time or not."

Written as the team behind one of the products on this list. We included ourselves on merit, flagged where we lose to the others, and hedged every price claim with "as of April 2026" because pricing pages change and we would rather under-claim than mislead.

What "best" actually means in 2026

The Next.js boilerplate market has matured. Five years ago, a Stripe checkout and a Tailwind hero was enough to charge $99. In 2026, buyers compare on:

• Stack modernity - Next.js 16 App Router, React 19, Tailwind v4, TypeScript strict. Anything still on Pages Router or Tailwind v3 is paying interest on technical debt from day one.
• Billing that survives production - not "Stripe checkout wired" but webhooks, idempotency, failed-payment flows, customer portal, proration, the things you only notice under real invoices. See how SaaSForge Core wires this end-to-end.
• Multi-tenant from SQL up - workspaces, RBAC, Row Level Security. A "team_id column" bolted onto a single-tenant demo is not multi-tenant; Supabase Auth + RLS done right is.
• AI support - streaming chat, RAG with pgvector, usage metering against a real credit economy. Most boilerplates still ship a fetch() to OpenAI and call it an "AI template."
• i18n - EN-only is fine for an indie side project; an agency shipping client sites needs EN/FR/ES (or more) without monkey-patching middleware.ts.
• License and ownership - perpetual vs subscription, private GitHub repo delivery vs zip download, seat count, resale clause.
• Checkout experience - merchant-of-record (Paddle, Polar, Lemon Squeezy) vs raw Stripe. MoR handles EU VAT, chargebacks, and tax filing; raw Stripe gives you more control but also more compliance surface.
• Price honesty - a $499 tier that hides "Stripe is extra" is more expensive than a $299 tier that ships it.

Every boilerplate below is a real product you can buy today. Every call-out below is something we would say to your face.

The contenders, at a glance

ShipFast (shipfa.st)

Marc Lou's boilerplate. Probably the most marketed product in the category and for good reason - the landing page, docs, and community flywheel are genuinely best-in-class. If you are a solo maker shipping a launch-focused product and you value speed of first deploy over multi-tenant depth, ShipFast is a serious pick. The stack historically leaned Mongo + NextAuth with Supabase variants; check the current pricing page for the stack variants on offer. Licensing is one-time, lifetime updates.

Where ShipFast leads: marketing polish, community, sheer volume of tutorials. If you want to see other people shipping with it on Twitter every week, this is the one.

Where ShipFast lags: depth on multi-tenant, RBAC, and enterprise billing edge cases. The defaults optimize for a solo founder's first SaaS, not a B2B product with SSO and audit logs.

Makerkit (makerkit.dev)

Giancarlo's boilerplate. The most enterprise-flavored product in the category - multi-tenant done thoughtfully, Supabase and Firebase variants, a turbo monorepo, and the kind of TypeScript discipline that makes senior engineers nod. Pricing is tiered; the higher tiers include source-code access for teams.

Where Makerkit leads: multi-tenant architecture, type safety across the codebase, enterprise patterns (audit, SSO hooks, 2FA). If you are building a B2B SaaS for teams of 10+, this is the closest thing to "production from day one."

Where Makerkit lags: the higher tiers are genuinely expensive, and the monorepo has a learning curve. If you are a solo maker shipping a content SaaS, you will use 20% of what you paid for.

Supastarter (supastarter.dev)

The Supabase-native boilerplate. If you know you are building on Supabase and you want a boilerplate that was designed around Postgres + Auth + RLS as the primary stack (not an alternative), Supastarter is the most coherent pick. Billing is wired, i18n is included.

Where Supastarter leads: opinionated Supabase wiring done well. Zero friction if Supabase is your chosen stack. Clean TypeScript.

Where Supastarter lags: if you want to swap Supabase for Neon, Clerk, or PlanetScale, you are working against the grain. The opinionation is a feature for most buyers and a cost for a few.

Boilerlykit (boilerlykit.com)

Our product. We do not sell one boilerplate - we sell four templates under the SaaSForge brand, each scoped to a distinct buyer, so you do not pay enterprise prices for a content site or indie prices for a multi-tenant product:

• SaaSForge Starter - the minimal Next.js 16 + Tailwind v4 + MDX shell. Landing, blog, docs, theme, Supabase Auth. $59 (was $99) as of April 2026.
• SaaSForge AI - streaming chat, RAG on pgvector, Stripe subscriptions, credit metering, Supabase. $259 (was $379).
• SaaSForge Core - multi-tenant workspaces, 4-role RBAC, Stripe, Supabase RLS, 2FA, SAML SSO hooks, API keys, webhooks, audit logs. $199 (was $299).
• SaaSForge Agency - multilingual marketing site (EN/FR/ES via next-intl) with Directus 11 CMS, services, case studies, lead intake. $229 (was $349).

Where Boilerlykit leads: scoped tiers (you pay for what you use), Next.js 16 + Tailwind v4 on three of the four products, real AI depth (RAG, credits, multi-provider), multilingual out of the box on Agency, Polar MoR checkout (EU VAT handled). All launch prices are live - actual purchases are gated at "Available Soon" during the rollout; sign up on any product page to be notified.

Where Boilerlykit lags: we are the youngest of the four. Community size and number of public case studies are smaller than ShipFast's. SaaSForge Agency is still on Tailwind v3 and TypeScript 5.5 (shipping the upgrade later in 2026) because Directus + a large CMS surface is a more cautious migration than the other three products.

Comparison by axis

Prices below are as of April 2026, per each vendor's public pricing page. Verify before buying - the market moves fast.

Stack modernity

• ShipFast: Next.js (check current version on their pricing page), Tailwind, TypeScript. Historically first to market on new Next.js releases.
• Makerkit: Next.js 15+, Tailwind v4 on recent variants, strict TypeScript, turbo monorepo.
• Supastarter: Next.js 14/15+ depending on variant, Tailwind, TypeScript strict.
• Boilerlykit: Next.js 16 + React 19 + Tailwind v4 on Starter, AI, Core. Agency on Tailwind v3 + TypeScript 5.5 for now.

Draw, slight edge to Makerkit and Boilerlykit depending on which variant you pick.

Billing depth

• ShipFast: Stripe wired with launch-focused webhook coverage. Good for single-plan SaaS.
• Makerkit: Stripe subscriptions, customer portal, seat-based billing on higher tiers.
• Supastarter: Stripe subscriptions + customer portal.
• Boilerlykit Core: Stripe tiers (Starter/Pro/Enterprise), customer portal, inbound + outbound webhooks, audit rows on billing mutations. Boilerlykit AI adds a credit economy tied to token use - the thing most "AI templates" skip.

Edge to Makerkit and Boilerlykit Core on enterprise-shaped billing, to Boilerlykit AI on usage-based billing.

Multi-tenant & RBAC

• ShipFast: single-tenant by default; team extensions exist but are lighter.
• Makerkit: best-in-class multi-tenant. If tenancy is your hardest requirement, this is the benchmark.
• Supastarter: multi-tenant via Supabase RLS, well-executed for teams that want Postgres.
• Boilerlykit Core: workspaces as the boundary, 4-role RBAC, RLS, 2FA/TOTP, SAML SSO hooks, API keys, audit logs, IP allowlists.

Edge to Makerkit and Boilerlykit Core. If you need SAML SSO documented out of the box, either works.

AI features

• ShipFast: AI variant exists; verify current feature list. Historically lighter on RAG.
• Makerkit: AI kit available on higher tiers.
• Supastarter: pgvector via Supabase is easy to add; not the primary positioning.
• Boilerlykit AI: streaming chat (Claude + OpenAI via Vercel AI SDK), uploads → chunking → embeddings → pgvector retrieval, credits tied to token usage, Stripe metering. The RAG pipeline is the headline.

Edge to Boilerlykit AI for "we are building an AI product."

i18n

• ShipFast / Makerkit / Supastarter: varies by variant; most ship EN with community translations.
• Boilerlykit Agency: EN, FR, ES via next-intl, all LTR, translated UI strings + CMS translations. The other three Boilerlykit templates are EN-only today.

Clear edge to Boilerlykit Agency if you are an agency shipping client sites in multiple languages; otherwise pick whoever ships your locale.

Licensing

All four sell one-time perpetual licenses with lifetime updates on the tier you bought. Seat counts differ - read each product's license page before buying. None of them is a subscription in the "you lose access when you stop paying" sense, which is the one thing we universally agree on in this category.

Checkout & tax

• ShipFast / Makerkit / Supastarter: most use Lemon Squeezy or Stripe, sometimes Paddle, depending on variant. Verify at checkout.
• Boilerlykit: Polar as merchant of record - EU VAT, invoices, refunds, and tax filing handled by Polar. Read our Paddle vs Stripe breakdown for why MoR matters for digital goods.

Functional parity if you are a buyer in the US; noticeable difference if you are a buyer in the EU/UK needing a compliant invoice.

Price (as of April 2026)

Verify on each vendor's pricing page before buying; numbers below are rounded starting points.

• ShipFast: one-time, roughly in the $200-$300 band.
• Makerkit: tiered from roughly $200 to $600+ depending on seat count and source access.
• Supastarter: one-time, roughly in the $200-$300 band.
• Boilerlykit: $59 Starter, $199 Core, $229 Agency, $259 AI - launch prices, with non-launch pricing visible on each product page for reference.

A decision tree

Cut through the noise:

1. Are you shipping a content site, portfolio, or indie landing? → SaaSForge Starter or a free Next.js starter. Don't pay enterprise prices for a one-pager.
2. Are you building an AI product (chat, RAG, agents)? → SaaSForge AI if you want the credit economy baked in; Makerkit's AI kit if you want its monorepo.
3. Are you building a B2B SaaS with teams, roles, SSO, audit? → SaaSForge Core or Makerkit's team tier. Supastarter if Supabase-native is non-negotiable. Skip ShipFast for this shape of product.
4. Are you an agency shipping client marketing sites in multiple languages? → SaaSForge Agency. None of the others positions for this workflow.
5. Are you a solo maker launching your first SaaS and you value community and tutorials over depth? → ShipFast. Honestly the strongest community in the category.
6. Do you want the safest hedge, paying once, for a B2B product with real multi-tenant? → Makerkit or Boilerlykit Core. Read both changelogs; pick the stack you want to wake up to.

How to not get burned

Five things to do before you pay for any boilerplate:

1. Read the license. "Unlimited projects" vs "unlimited per-person" is a $500 difference.
2. Look at the last 3 months of commits. Stale repos cost more than they save.
3. Check the docs index. If setup is a treasure hunt, setup is a treasure hunt after you pay too.
4. Scan the package.json. Next.js version, Tailwind version, ORM choice - a mismatch with your stack is a red flag.
5. Join the community. Five minutes in the Discord or X replies tells you whether the maintainer responds or ghosts.

Then buy the one you can see yourself shipping inside, not the one whose landing page is loudest. Our internal-linking post is about content strategy, but the same logic applies here: judge boilerplates by the boring middle chapter, not the hero section.

The short answer

• Best community & fastest first deploy: ShipFast.
• Best enterprise / multi-tenant depth: Makerkit or SaaSForge Core.
• Best if you picked Supabase already: Supastarter.
• Best for AI products with real metering: SaaSForge AI.
• Best for agencies shipping multilingual client sites: SaaSForge Agency.
• Best cheap first step: SaaSForge Starter at $59.

Whatever you pick, buy once, own the repo, and stop renting your foundation.