React vs Next.js 2025: Which for Your SaaS?

React vs Next.js for SaaS Apps

Building a SaaS? Here's how to choose the right framework.

React: The Library

Pros:

• Maximum flexibility
• Huge ecosystem
• Client-side rendering

Cons:

• Need to configure everything
• No built-in SEO
• Slower initial load

Next.js: The Framework

Pros:

• Built-in SSR and SSG
• Excellent SEO
• API routes included
• Optimized by default

Cons:

• More opinionated
• Steeper learning curve

When to Use What

Use React when:

• Building a complex SPA
• SEO doesn't matter
• You need maximum control

Use Next.js when:

• SEO is critical
• You want fast initial loads
• You need server-side features

My Recommendation

For most SaaS apps, Next.js is the better choice. The built-in optimizations and SEO benefits outweigh the learning curve.