Best Tech Stack for SaaS Startups in 2024
Picking a tech stack is one of the first decisions for a SaaS. Proven stacks reduce risk and speed hiring. Here's our recommended stack for 2024 — and when to deviate.

Quick Recommendation
Frontend: React + TypeScript (or Next.js for SSR). Backend: Node.js (Express/Fastify) or Python (FastAPI). Database: PostgreSQL. Hosting: Vercel (frontend) + Railway/Render (backend) or AWS.
Table of Contents
Frontend
React + TypeScript: largest ecosystem, most hires. Next.js for SEO or full-stack. Vue if team prefers. See our React vs Next.js guide.

Backend
Node.js: one language (JS) for frontend and backend. Python: strong for data, ML. See our Node vs Python guide.
Database
PostgreSQL for relational. Redis for cache/sessions. See our Database Selection guide.
Hosting
Vercel for Next.js. Railway, Render, or Heroku for Node. AWS when you need more. See our Hosting comparison.
When to Deviate
Team expertise matters. Data-heavy: Python. Real-time: consider Elixir. Use proven stacks unless you have a strong reason.
Frequently Asked Questions
Monolith or microservices for SaaS?
Start monolith. Extract services when you hit scale or team boundaries. See our Microservices vs Monolith guide.