SvelteKit vs Gatsby: Head-to-Head Comparison

Quick Verdict

SvelteKit is the better pick for teams wanting small bundles and a compiler-based UI. Gatsby is the better pick for existing Gatsby sites that source data through GraphQL.

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At a Glance

Feature	SvelteKit	Gatsby
Best For	Teams wanting small bundles and a compiler-based UI	Existing Gatsby sites that source data through GraphQL
Pricing	Free and open source	Free and open source
Free to Start	Yes	Yes
License	Open source	Open source
Deployment	Library / framework in your stack	Library / framework in your stack
Link	Visit SvelteKit	Visit Gatsby

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Detailed Breakdown

SvelteKit

Full-stack framework for Svelte

Pros:

• Compiled output with small bundles
• Simple, readable component syntax
• Adapters for many hosts

Cons:

• Smaller ecosystem than React
• Smaller hiring pool

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Gatsby

React static site generator with a GraphQL data layer

Pros:

• Large plugin library
• GraphQL layer unifies data sources
• Strong image handling

Cons:

• Development has slowed significantly
• Build times grow with site size

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Key Differences

• Positioning: SvelteKit — full-stack framework for Svelte. Gatsby — React static site generator with a GraphQL data layer.
• Both share the same licensing model (open source), so the decision comes down to features and workflow fit.
• Pricing: SvelteKit — free and open source. Gatsby — free and open source.
• Signature strength: SvelteKit — compiled output with small bundles. Gatsby — large plugin library.

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Frequently Asked Questions

Is SvelteKit better than Gatsby?

It depends on your requirements. SvelteKit is a strong fit for teams wanting small bundles and a compiler-based UI, while Gatsby suits existing Gatsby sites that source data through GraphQL.

Is SvelteKit free to use?

Yes, you can start with SvelteKit for free. Pricing model: Free and open source.

Is Gatsby free to use?

Yes, you can start with Gatsby for free. Pricing model: Free and open source.

Can I self-host SvelteKit or Gatsby?

SvelteKit runs inside your own stack: library / framework in your stack. Gatsby runs inside your own stack: library / framework in your stack.

What are the main drawbacks of SvelteKit and Gatsby?

SvelteKit: smaller ecosystem than React; smaller hiring pool. Gatsby: development has slowed significantly; build times grow with site size.