The Decision That Defines Your Product
Choosing the right tech stack is one of the most critical decisions when building a SaaS. A bad choice can cost you months of delays, scalability issues and technical debt.
Frontend: React Still Dominates
In 2025, React remains the most popular frontend framework and for good reason:
- Mature ecosystem and huge community
- React 19 with Server Components
- Excellent performance with latest optimizations
- Compatible with all modern UI libraries
Alternatives to consider:
- Next.js: If you need SSR/SSG for SEO
- Remix: If you prioritize developer experience
- Svelte/SvelteKit: If you seek maximum performance
Backend: Node.js + tRPC
The combination of Node.js with tRPC offers:
- End-to-end TypeScript (no manual contracts)
- Excellent API performance
- Massive npm ecosystem
- Easy to scale horizontally
Database: SQL vs NoSQL
For most SaaS, we recommend SQL databases:
- Guaranteed referential integrity
- Efficient complex queries
- ACID transactions
- Mature tools (Drizzle ORM, Prisma)
MySQL/TiDB for horizontal scalability, PostgreSQL for advanced features.
Infrastructure: Cloud-Native
- Containers: Docker for environment consistency
- Orchestration: Kubernetes or managed services
- CDN: Cloudflare or AWS CloudFront
- Storage: S3 for files, Redis for cache
Our Recommended Stack
At Ironbat Digital we use:
| Layer | Technology |
|---|---|
| Frontend | React 19 + Tailwind CSS 4 |
| Backend | Node.js + Express + tRPC |
| Database | MySQL/TiDB + Drizzle ORM |
| Authentication | OAuth 2.0 + JWT |
| Storage | S3 |
| Deploy | Containers + CDN |
Conclusion
There's no universal perfect stack. The best choice depends on your use case, team and budget. The important thing is to choose mature, well-documented technologies with an active community.