The Minimum Viable Stack: Launch a SaaS for Under $50/Month

The cost of launching a SaaS has dropped dramatically in the last five years, but most indie maker stack guides still reference tools with $50 to $100 monthly price tags per category. This guide covers what you actually need to launch a credible SaaS, with the cheapest viable option in each category, and a total monthly cost that stays under $50.

Framework and frontend: Next.js (free)

Next.js is the standard choice for indie SaaS founders in 2026 for good reason. It handles server-side rendering, API routes, static generation, and client-side interactivity in one framework. The learning curve is real but the ecosystem is enormous, which means almost every problem you hit has a documented solution.

Alternatives: Remix if you prefer a more server-centric model. SvelteKit if you want a lighter framework with excellent performance. Both are free. The framework itself costs nothing. What you pay for is hosting and infrastructure.

Cost: $0

Hosting: Vercel free tier or Coolify on Hetzner

Vercel's free tier handles most early-stage SaaS workloads. 100GB bandwidth, serverless functions, automatic deploys from Git, and a global CDN. The limit that matters most is the function execution time (10 seconds) and the fact that hobby projects cannot have more than one team member. For a solo founder at launch, the free tier is sufficient.

When you outgrow the free tier, the Pro plan at $20 per month is worth it before considering self-hosting. Alternatively, Coolify on a $6 Hetzner VPS handles everything Vercel does for applications that do not require edge functions or the Vercel CDN.

Cost: $0 to $20 per month

Database and auth: Supabase free tier

Supabase gives you a managed Postgres database, authentication (email/password, OAuth, magic links), file storage, and real-time subscriptions. The free tier includes 500MB database storage, 1GB file storage, 50,000 monthly active users for auth, and 2GB bandwidth. For a product at launch, this is more than enough.

The free tier has one significant limitation: projects are paused after 1 week of inactivity. This matters during development but not in production once your product has users. The Pro plan at $25 per month removes the pause and adds significantly more resources.

Cost: $0 (free tier) to $25 per month (Pro)

Payments: Stripe or Dodo Payments

Stripe charges 2.9% plus $0.30 per transaction with no monthly fee. For a SaaS charging $10 per month, that is $0.59 per transaction, or 5.9% effective fee. There is no cheaper credible option for US-based customers that gives you the same developer experience and reliability.

For European or global customers, or if you want someone else to handle VAT and sales tax, Dodo Payments and LemonSqueezy are worth evaluating. Both handle merchant of record responsibilities, which means they collect and remit taxes on your behalf. The trade-off is a slightly higher fee (around 5% plus $0.50) in exchange for removing tax compliance entirely.

Cost: 2.9% to 5% per transaction, no monthly fee until revenue justifies it

Email (transactional): Resend

Resend is the developer-focused transactional email service that has become the default for indie SaaS founders. Free tier includes 3,000 emails per month and 100 per day. The API is clean, the documentation is excellent, and the deliverability is consistently better than alternatives at the same price point.

For newsletter and marketing email, keep this separate from transactional. Mailchimp's free tier (500 subscribers, 1,000 sends per month) covers early-stage newsletter needs. Or use Listmonk self-hosted with Amazon SES for near-zero cost at higher volume.

Cost: $0 (Resend free tier covers launch volumes)

Analytics: Google Analytics 4 or Plausible

GA4 is free and gives you more data than you will realistically use at launch. The downside is the privacy implications and the data being sent to Google. Plausible costs $9 per month and gives you a clean, privacy-first dashboard with the 10 metrics that actually matter. The self-hosted version is free.

For launch, GA4 is fine. Move to Plausible when you have users who care about privacy or when you want a simpler interface.

Cost: $0 (GA4) or $9 per month (Plausible)

Error tracking: Sentry free tier

Knowing when your product breaks before users report it is not optional. Sentry's free tier includes 5,000 errors per month and real-time alerting. Integrate it on day one. The 30 minutes it takes to set up will save you hours of debugging user-reported issues you cannot reproduce.

Cost: $0

Domain and SSL

A .com domain from Namecheap or Cloudflare registrar costs $10 to $12 per year. Cloudflare's free plan handles DNS, SSL certificates, DDoS protection, and a CDN in front of your origin. This is the single most valuable free tier in the entire stack. Use it from day one.

Cost: $10 to $12 per year for the domain. SSL and CDN: $0

Directory listing: BuiltByMe

Getting your product listed in a directory before you have other backlinks is the fastest way to start building domain authority. BuiltByMe lists indie maker products with a free tier (NoFollow backlink) and a Launch plan at $19 for a DoFollow backlink and queue priority. A DoFollow backlink from an indexed directory in your first month is worth more than most other early SEO activities.

Cost: $0 (free listing) or $19 one-time (Launch plan with DoFollow backlink)

The full stack cost at launch

• Framework: $0
• Hosting (Vercel free): $0
• Database and auth (Supabase free): $0
• Payments (Stripe): $0 monthly, % per transaction
• Email (Resend free): $0
• Analytics (GA4): $0
• Error tracking (Sentry free): $0
• Domain: ~$1 per month
• Directory listing (BuiltByMe free): $0
• Total: ~$1 per month at launch

When you hit your first paying users and the free tiers stop covering your needs, the natural upgrade path is: Supabase Pro ($25), Vercel Pro ($20), and Plausible ($9). That is $54 per month for a production-grade stack handling thousands of users.

The founders who stress about picking the perfect tech stack before launch are solving the wrong problem. Pick the cheapest credible option in each category, launch, and upgrade when the limits actually hurt you. Premature optimization of your stack is just expensive procrastination.