Vue.js vs SvelteKit: Which One I Actually Reach For (And Why)

I first got serious about Vue.js in 2021 when I joined PT Booster Teknologi Indonesia to build Manypage.id and Komplace.id. Three years of Vue.js in production, then in 2025 I started experimenting with SvelteKit for freelance projects like Dharentrans.

This is an honest comparison from the perspective of a developer who has used both in production.

The Most Noticeable Difference: Reactivity

Vue.js

<script setup>
import { ref, computed } from "vue";

const count = ref(0);
const doubled = computed(() => count.value * 2);

function increment() {
  count.value++;
}
</script>

<template>
  <button @click="increment">{{ count }} (doubled: {{ doubled }})</button>
</template>

Vue.js uses .value because reactivity is wrapped in ref(). It feels strange at first, but becomes natural once you’re used to it.

SvelteKit

<script>
  let count = 0
  $: doubled = count * 2
</script>

<button on:click={() => count++}>
  {count} (doubled: {doubled})
</button>

Svelte feels more natural. Regular variables are reactive directly, no wrapper needed. $: is a reactive statement — it automatically re-runs when its dependencies change.

When I Choose Vue.js

• Enterprise SaaS projects with large teams — the Vue ecosystem (Pinia, Vue Router, Nuxt) is mature and well-documented
• Projects requiring many component libraries — shadcn-vue, Primevue, etc. are very comprehensive
• Teams already familiar with it — onboarding new developers to Vue is easier because the documentation is excellent

<!-- Vue is great for complex forms -->
<script setup>
import { useForm } from "vee-validate";
import { toTypedSchema } from "@vee-validate/zod";
import { z } from "zod";

const schema = toTypedSchema(
  z.object({
    email: z.string().email(),
    password: z.string().min(8),
  }),
);

const { handleSubmit, errors } = useForm({ validationSchema: schema });
</script>

When I Choose SvelteKit

• Full-stack projects with routing — SvelteKit’s file-based routing + server functions are very clean
• Small-to-medium projects — Svelte’s bundle size is much smaller (no virtual DOM)
• Need simple SSR — +page.server.ts is very straightforward

// src/routes/booking/+page.server.ts
export async function load({ params }) {
  const booking = await db.booking.findUnique({
    where: { id: params.id },
  });
  return { booking };
}

export const actions = {
  create: async ({ request }) => {
    const data = await request.formData();
    // Handle forms directly on the server
  },
};

Bundle Size Comparison

Vue.js (with Vue Router + Pinia): ~60KB gzipped
Svelte (compiled):                ~10-15KB gzipped

This difference is very noticeable on mobile and slow connections.

Verdict

Aspect	Vue.js	SvelteKit
Learning curve	Medium	Easy
Ecosystem	★★★★★	★★★☆☆
Bundle size	Large	Small
SSR/Fullstack	Nuxt	Built-in
Reactivity	Explicit	Magic

For 2026, my default is SvelteKit for new projects because the DX is outstanding. But for SaaS projects that need a strong ecosystem, Vue.js remains my top choice.