Svelte 5 Runes
Built entirely with $state and $derived — no Svelte stores, no manual subscriptions, no cleanup boilerplate.
svelte-firekit
Firebase + Svelte 5. Reactive by default, SSR-safe, zero boilerplate.
Why svelte-firekit?
Section titled “Why svelte-firekit?”SSR-Safe
Every service degrades gracefully on the server. Use reactive data in load functions and SvelteKit layouts without extra guards.
Full Firebase Coverage
Auth, Firestore, RTDB, Storage, Cloud Functions, Firebase AI, Analytics, Messaging, Remote Config, App Check, Presence, and more.
Two APIs, One Library
Use class instances directly in <script> blocks, or drop in declarative Svelte components — <Doc>, <Collection>, <AuthGuard>, and more.
Quick install
Section titled “Quick install”npm install svelte-firekit firebaseWhat’s included
Section titled “What’s included”Authentication
Email, OAuth (Google, GitHub, Apple, Microsoft, Facebook, Twitter), Phone, SAML, OIDC, Anonymous, Custom token, MFA, redirect flows.
Firestore
Reactive documents, collections, collection groups, fluent query builder, cursor pagination, infinite scroll, batch writes, transactions.
Realtime Database
Reactive nodes and lists with set, update, push, remove, and one-time fetch.
Storage
Reactive download URLs, resumable uploads with progress, directory listings, metadata read/write, file deletion.
Firebase AI
One-shot generation, streaming, and multi-turn chat with Gemini. Supports Google AI and Vertex AI backends.
Cloud Functions
Typed callable function wrappers with reactive loading/error state. Call by name or full URL.