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The Base44 backend service is the same backend that powers Base44’s AI app builder, available as a standalone service. It’s a complete backend-as-a-service (BaaS) that includes:
  • Data management: Store and query data without managing servers.
  • User authentication: Built-in login, social auth, and session handling.
  • Backend functions: Custom backend code, callable from your app or externally.
  • Integrations: Pre-built connections to AI, email, file storage, and more.
  • Hosting: Deploy your frontend with HTTPS and custom domains.
For more details on these features and others, see Features.

Base44 AI app builder vs the Base44 backend service

The Base44 AI app builder generates complete apps, frontend and backend together. The Base44 backend service gives you just the backend, so you can build your own frontend or skip the frontend entirely.
Base44 AI App BuilderBase44 Backend Service
What you getAI-generated frontend + backendBackend only
How you buildDescribe what you want in chatCode in your own IDE, or use an AI coding assistant
FrontendAuto-generated React appBring your own on any framework, or don’t have one at all
Best forNon-developers, quick buildsDevelopers, custom projects
Starting pointbase44.comBase44 CLI, or skills in your AI coding assistant
Use the backend service if you:
  • Need pixel-perfect control over your frontend design and UX.
  • Have an existing frontend project that needs a backend.
  • Want to build for platforms the AI app builder doesn’t support, like mobile.
  • Want to integrate Base44’s backend into a larger system.
You might prefer the AI app builder if you:
  • Want to build entirely in Base44’s interface.
  • Want the fastest path from idea to working app.
  • Prefer a guided, visual experience over a code-first workflow.

How the backend service works

You create and manage backend service projects using the Base44 CLI. The CLI sets up a local project structure where you define your backend resources, such as entities and functions, and optionally include frontend code. You interact with your backend using the JavaScript SDK. This is the same SDK used in Base44’s AI-generated apps. Use it in your own frontend, or from any other app or service that needs to connect to your backend. When you’re ready, deploy your project with a single CLI command. Your backend resources and any frontend files are deployed to Base44’s infrastructure.

Example use cases

  • Custom-designed web apps: Design your own frontend when you need full creative control. Match your brand exactly or craft unique experiences. Use any framework while Base44 handles the backend.
  • Headless apps: Build apps without a traditional frontend, like a Telegram bot that calls your backend functions via HTTP.
  • Mobile apps: Build a mobile app with a JavaScript-based mobile framework like React Native, using the SDK to connect to your Base44 backend.
  • Extend existing projects: Add Base44’s data management, authentication, or backend logic to a project you’ve already built.