Key takeaways
- Choose boring, proven technology your team knows well — it ships faster and is easier to hire for.
- A strong default: TypeScript + React/Next.js, a PostgreSQL database, managed auth and billing, and managed hosting.
- Separate the SEO-friendly marketing site from the logged-in app, and plan for security, backups and monitoring from day one.
Founders often spend weeks debating frameworks. In reality, many stacks can build a successful SaaS. What matters is choosing tools that let you ship, iterate and scale without re-writing everything in a year. Here’s how I approach it.
The layers of a SaaS#
| Layer | Common choices |
|---|---|
| Front end | React with Next.js, Vue with Nuxt, SvelteKit |
| Back end / API | Next.js server actions/route handlers, Node.js (NestJS, Express), Laravel (PHP), Django/FastAPI (Python) |
| Database | PostgreSQL (default), MySQL; Redis for caching/queues |
| Auth | Auth.js, Clerk, Supabase Auth, Laravel Breeze/Jetstream |
| Billing | Stripe, Razorpay Subscriptions, Paddle, Lemon Squeezy |
| Postmark, Resend, Amazon SES | |
| File storage | S3, Cloudflare R2, Supabase Storage |
| Hosting | Vercel, Render, Railway, Fly.io, AWS, DigitalOcean |
| Monitoring | Sentry (errors), uptime monitoring, logs |
| Product analytics | PostHog, Mixpanel, GA4 |
Proven starting stacks#
- Next.js + TypeScript + PostgreSQL (Prisma/Drizzle) + Auth.js/Clerk + Stripe/Razorpay — great all-rounder, huge ecosystem.
- Laravel + Inertia (Vue/React) + MySQL/PostgreSQL — very productive for CRUD-heavy apps and teams with PHP experience.
- Supabase (Postgres, auth, storage) + React/Next.js — fastest path for small teams and MVPs.
- Django + React — strong for data-heavy and Python/AI-centric products.
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Decision criteria#
- Team skills — the biggest factor.
- Product type — real-time collaboration, heavy data processing, AI features, mobile apps.
- Compliance — data location (e.g. Indian data residency needs), healthcare or finance rules.
- Cost at scale — serverless is cheap to start but model costs as usage grows.
- Ecosystem — UI kits, charting, tables, integrations you need.
Architecture tips#
- Start with a modular monolith; microservices add complexity most early SaaS products don’t need.
- Design multi-tenancy early (tenant ID on records; enforce in every query; consider Postgres row-level security).
- Use background jobs for emails, imports and reports (BullMQ, Laravel queues, Celery).
- Automated backups and tested restores for the database.
- CI/CD with automated tests for core flows.
- Environment separation: development, staging, production.
Marketing site and SEO#
Your SaaS needs organic acquisition. Build the marketing site, blog and docs with server-side rendering or static generation (or WordPress), and keep the app at app.yourdomain.com or /app. See JavaScript SEO and choosing a framework.
SaaS tech stack FAQ#
Is PHP still good for SaaS?#
Yes. Modern PHP with Laravel is fast, productive and powers many successful SaaS products.
Should I use serverless?#
Serverless is great for spiky workloads and small teams. For constant heavy workloads, containers or VMs may be cheaper.
When should I worry about scaling?#
After you have paying users. Good fundamentals (indexes, caching, queues) handle a lot of growth.