React Three Fiber vs Three.js — React-First vs Vanilla
R3F brings React mental model to Three.js — gain composability and hot-reload, lose some bundle size and direct control.
R3F treats Three.js objects as React components — declarative, composable, reactive. Pros: easier team development (React skills transfer), hot reload works fully, state management is natural. Cons: slightly larger bundle, abstraction can hide Three.js details. For React-based apps with 3D, R3F is the natural choice. For non-React projects, vanilla Three.js makes more sense.
Migration cost
Going from the second to the first option later (after the project is live) is non-trivial — usually 30-50% of the original build cost in engineering time. The opposite direction (first to second) is rarely needed. So the choice at kickoff is the more important call. I help clients think through this in a 30-min call before any contract.
Quick summary
The short version: React Three Fiber vs Three.js — React-First vs Vanilla is a comparison between two real choices working developers actually face on production projects. Both options have valid use cases and neither dominates the other. The right pick depends on team skills, target browser support, and the specific 3D features your project needs.
When option A wins
Pick the first option when the team prefers a stable mature ecosystem with a large community, when the project will run on production for 5+ years (long-term maintainability), and when the design constraints are well-understood before kickoff. The first option also wins for projects with a meaningful budget that can afford engineering depth.
When option B wins
Pick the second option when speed-to-prototype matters more than long-term maintenance, when the team includes a generalist rather than a 3D specialist, and when the visual ambition fits within the framework's built-in capabilities. The second option ships fast and rarely fights the tooling, which matters for marketing-driven launches.
Frequently asked questions
Can I switch options later?
Which tool do you personally use?
How long does this take?
What does it cost?
What if my visitors are on weak phones?
Ready to ship a 3D experience?
Tell me what you need — fixed price, fixed deadline, no surprises.