- 4 days ago
- 5 min read
Updated: 2 hours ago
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.
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
Feature | What it does | Best for |
Custom web apps | Build full-stack web apps with AI-managed backend | SaaS, eCommerce, enterprise tools |
Real-time mobile apps | Live data sync and universal SDK for mobile | Chat apps, social feeds, collaborative tools |
Headless & automation | Run bots, scripts, scheduled jobs and APIs | Automation workflows, integrations |
Extend existing projects | Add Base44 backend functions to your current stack | Legacy apps, hybrid architectures |
AI-powered development | Let AI handle databases, auth, hosting and serverless functions | Faster product development and scaling |
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:
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.
“Base44 lets you focus on outcomes. Instead of asking, ‘How do I code this?’ you’re asking, ‘How does this make life better for my users?’ That’s where innovation starts.” - Nina Boyd, PMM at Base44
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.
"In app building, speed and quality are often at odds. But with Base44, you don’t have to choose. It’s designed to help you build high-quality apps quickly, so you can get to market faster without cutting corners." - Ilay Granot, Marketing at Base44
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:
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
SPA support (server-side rendering not supported)
“Base44 lets you focus on outcomes. Instead of asking, ‘How do I code this?’ you’re asking, ‘How does this make life better for my users?’ That’s where innovation starts.” - Nina Boyd, PMM at Base44
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
What is the Base44 backend?
The Base44 backend is an AI-first backend platform that handles databases, authentication, serverless functions and hosting. It lets developers focus on building their product while AI manages repetitive backend tasks. Perfect for web, mobile or headless applications, Base44 accelerates development without compromising flexibility.
Can I use Base44 as an AI app builder?
Yes. Base44 functions as a complete AI app builder, allowing you to leverage serverless functions, real-time data and integrations to quickly create web and mobile applications. With AI-powered automation, it’s easy to build, deploy and scale apps without managing traditional backend infrastructure.
Learn how to build an app with AI.
What types of applications can I build with the Base44 backend?
With the Base44 backend, you can build:
Custom full-stack web applications
Real-time mobile apps
Headless services and automation workflows
Extensions for existing projects using Base44 backend functions
How do Base44 functions work?
Base44 backend functions are serverless scripts written in TypeScript or JavaScript that run on the Deno runtime. You can connect them to your database, APIs and external services. Functions can be triggered by HTTP requests, scheduled jobs or events, making them ideal for automation, bots and webhook processing.