What you can build with the Base44 backend platform

The Base44 backend is designed to remove the friction of backend development so you can focus on building your product.

Modern development is often slowed down by the “plumbing” of repetitive tasks like setting up databases, configuring authentication and managing server infrastructure.

Base44 is an AI-first backend platform built for the modern AI app builder, letting AI handle these tasks for you. Because Base44 provides a configuration and code-based environment for data management, authentication, serverless infrastructure and every Base44 backend function, AI can autonomously build and manage your entire backend, allowing you to focus entirely on your product’s unique value.

Here are the four primary ways you can leverage Base44 to build and scale your next project.

TL;DR: Base44 backend

The Base44 backend lets developers build full-stack apps without managing infrastructure. By combining serverless functions, authentication, database management and hosting, it removes the most time-consuming parts of backend development. Base44 backend gives AI agents secure access to your app's data and logic. Base44 empowers entrepreneurs and teams to ship products fast.

With the Base44 backend you can build:

• Custom full-stack web applications

• Real-time mobile apps with live data sync

• Headless services and automation workflows

• Backend features that extend existing applications

Learn about the benefits of Backend as a Service.

What you can build with the Base44 backend

The Base44 backend platform supports a wide range of modern application architectures, from full-stack web apps to automation services. Below are the four primary ways developers use Base44 to build and scale products.

Jump to a section:

1. Custom web applications

2. Real-time mobile applications

3. Headless and automation services

4. Extending existing projects

01. Custom web applications

Build full-stack web applications with total creative freedom. Base44 handles the heavy lifting of backend infrastructure while you maintain complete control over your frontend.

What Base44 provides:

• Flexible data: Base44 features a A NoSQL database with MongoDB-compatible queries.

  
  

• Secure auth: User authentication (Email/Password, OAuth) out of the box.

  
  

• Custom logic: Serverless TypeScript functions for complex backend workflows.

  
  

• Global hosting: Static site hosting with automatic HTTPS and custom domain support.

  
  

• Supported frameworks: You aren't locked in. Use React, Vue, Svelte, Solid, Next.js, Remix, Astro (static export) or even vanilla JavaScript.

The workflow:

# Initialize your project

Base44 create my app

# Define your data models in Base44/entities/

# Push your schema to the cloud

Base44 entities push

# Build and deploy your frontend

NPM run build

Base44 deploy

Best for: SaaS platforms, eCommerce engines and internal enterprise tools where pixel-perfect design and custom UX are non-negotiable.

Explore Base44 templates to get started →

02. Real-time mobile applications

Build native or cross-platform mobile apps using JavaScript frameworks with Base44 as your backend.

Key mobile features:

• Universal SDK: Use the same logic across web and mobile deployments.

  
  

• Real-time subscriptions: Keep your UI in sync with live data updates.

  
  

• Data security: Row-level security (RLS) ensures users only see the data they own.

  
  

• Integrated storage: A built-in CDN for lightning-fast media asset delivery.

  
  

• Supported frameworks: React Native, Ionic, Expo, NativeScript.

The workflow:

# Install the SDK in your React Native, Ionic or Expo project

NPM install @Base44/sdk

# Connect to your Base44 backend

Base44 create

Base44 entities push

Best for: Chat applications, collaborative task managers, social feeds, field service apps and any mobile-first product needing a robust backend.

Learn more: How to make a mobile app.

03. Headless and automation services

Not every application needs a traditional UI. Base44 is powerful enough to act as a "headless" engine for bots, background scripts and automated workflows.

Common use cases:

• Community bots: Power Telegram, Discord or Slack bots using serverless functions.

  
  

• Webhook processing: Securely process events from Stripe, GitHub or Twilio.

  
  

• Scheduled jobs: Set up Cron jobs for data cleanup or daily notifications.

  
  

• API-first services: Expose your backend functions as standard HTTP endpoints.

The workflow:

# Create a backend-only project

Base44 create

# Write your logic in Base44/functions/

# Deploy your serverless logic

Base44 functions deploy

Your functions are instantly accessible here.

Best for: Automation flows, third-party integrations and background data processing.

Read more about Base44 integrations:

• Base44 Google Calendar integration

• Base44 Slack integration

• Base44 Google Drive

• Base44 Stripe integration

• Base44 GitHub integration

04. Extending existing projects

You don't have to start from scratch to benefit from Base44. Its modular design allows you to drop specific features into an existing stack or migrate away from a legacy backend incrementally.

Integration patterns:

• Auth-only: Keep your current database but use Base44 for secure login and OAuth.

  
  

• Specific features: Use Base44 exclusively for its built-in AI (LLM) integrations, file storage or real-time data layers.

  
  

• Gradual migration: Build new features on Base44, sync your read-only data and slowly shift write operations until your legacy backend is ready for deprecation.

The workflow:

# Add to your existing repository

NPM install @base44/sdk

# Initialize Base44 configuration alongside your current code

Base44 create

Best for: Legacy app modernization, testing backend platform benefits without a full rewrite and hybrid cloud architectures.

Core capabilities of the Base44 backend

Data management

• NoSQL database with JSON schemas

• MongoDB-compatible query operators

• Row-level and field-level security

• Real-time subscriptions for live updates

Authentication

• Email/password registration and login

• OAuth providers (Google, Microsoft, Facebook, Apple)

• Session management handled automatically

• Custom user fields and metadata

Backend functions

• TypeScript/JavaScript on Deno runtime

• Full database and integration access

• HTTP endpoints for webhooks

• Service role for admin operations

Integrations

• Built-in integrations: AI text generation, image creation, email and file storage

• Custom: Connect any API with OpenAPI specs

• OAuth connectors: for third-party services

Hosting

• Static site deployment with CDN

• Automatic HTTPS

• Custom domains

• SPA support (server-side rendering not supported)

Ready to build? With the Base44 backend, you can go from project creation to a deployed application in minutes. Get started with the Base44 today →

Base44 backend FAQ