Svelte & SvelteKit Development
Lightning-fast web applications built with Svelte 5 and SvelteKit — compiler-first framework delivering minimal JavaScript bundles and exceptional runtime performance.
Svelte and SvelteKit represent the future of frontend development. Unlike React and Vue, Svelte compiles your components at build time into lean vanilla JavaScript — no virtual DOM, no runtime library shipped to the browser. The result is dramatically smaller bundles and faster runtime performance by default.
As a SvelteKit developer who has built production applications including this portfolio, I leverage the full SvelteKit ecosystem: file-based routing, server-side rendering, form actions with progressive enhancement, load functions for data fetching, and adapter-based deployment to any platform.
Svelte 5's runes system ($state, $derived, $effect) provides explicit reactivity without the complexity of React hooks. There are no dependency arrays, no rules of hooks, and no stale closure bugs. Runes work everywhere — in components, in .svelte.js files, and inside functions.
I build marketing sites, portfolios, SaaS dashboards, content platforms, and startup MVPs with SvelteKit. On a recent designer portfolio, SvelteKit delivered a 96 Lighthouse Performance score with a total JavaScript bundle under 30KB gzipped — including all animations powered by GSAP.
Technologies
Business Benefits
- 60-70% smaller JavaScript bundles compared to React equivalents
- Sub-second page loads with compiler-first architecture
- Simpler developer experience — less code, fewer bugs
- Built-in SSR, SSG, and form actions without external libraries
- Excellent Core Web Vitals scores by default
- Progressive enhancement — forms work without JavaScript
Deliverables
- Production-ready SvelteKit application with TypeScript
- Server-side rendering with load functions
- Form actions with progressive enhancement
- Component library with Svelte 5 runes
- GSAP or Svelte motion animations
- SEO-optimised metadata, sitemap, and structured data
- Performance audit (targeting 95+ Lighthouse)
- Deployment configuration (Vercel, Netlify, Node)
Frequently Asked Questions
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