Build frontend apps
without backend complexity

OnlyFrontend provides authentication, state synchronization, and API proxying so you can focus on what matters — creating amazing user experiences.

app.js
// Zero backend setup
import { OnlyFrontend } from 'onlyfrontend'

const app = new OnlyFrontend({
  apiKey: 'your-api-key'
})

// Save state effortlessly
await app.save({ todos: [...items] })

// Authentication in one line
const user = await app.auth.login()

Everything you need. Nothing you don't.

Focus on building great frontend experiences while we handle the infrastructure.

Zero-Config Authentication

Drop-in authentication with support for social logins, magic links, and custom providers. No backend setup required.

Real-time State Sync

Synchronize application state across devices and users in real-time. Git-style diffs for efficient updates.

API Proxy & Secrets

Securely call third-party APIs without exposing keys. Encrypted secret storage with lightweight proxy service.

Built with modern technologies

Leveraging the best tools for performance, security, and developer experience.

TypeScript SDK Full type safety
Cloudflare Durable Objects Global edge storage
FastAPI Backend High performance
Framework Agnostic React, Vue, Svelte

See it in action

Try our interactive demo to experience OnlyFrontend's capabilities.

Yearly Goals Tracker

A complete app built with OnlyFrontend showcasing:

  • User authentication
  • Real-time state persistence
  • Cross-device synchronization
  • Zero backend configuration
Open Full Demo

Ready to build without limits?

Join thousands of developers who've said goodbye to backend complexity.

Start Building Today

Free tier available • No credit card required