Launch a backend in minutes and scale as your apps grow

A low-code backend that lets you store and query data in the cloud, with auto-generated GraphQL and REST APIs, all powered by a scalable, AI-driven solution.

Build your app backend in minutes

No credit card required

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Don't start from scratch each time you build

We have everything you need to transform your backend from a job that takes months, to something that can be ready in weeks,
even days.

Real-Time Database

Build real-time apps by storing and querying relational data between your users with strong user-based security.

Cloud code functions

Deploy and run server-side logic without needing to spin up your own servers.

APIs & SDKs

Get a smooth, easy-to-use experience when you build using our simple APIs (GraphQL/REST) and SDKs.

What makes us unique?

Open-Source

Straightforward, easy-to-use, and low-learning curve

Relational data, indexing, and aggregate functions

Easy-to-understand and predictable pricing

Dedicated and Enterprise plans

Build a backend in minutes and scale
without the infrastructure hassle

Unlock AI-powered tools and ready-to-use components for lightning-fast development.
With our intuitive UI, SDKs, and APIs, you can focus more on growing your business while we handle the infrastructure.

A developer-centric platform that speaks your language

Back4app makes it easy to connect your frontend to the backend, no matter what stack you're working with. Write less code, integrate faster, and focus on delivering great apps.

Saving data

GraphQL API

REST API

Javascript SDK

iOS SDK

Android SDK

Flutter SDK

.NET SDK

Querying data

Creating Cloud Functions

Extending GraphQL Schema

Calling Cloud Functions

Saving data

Querying data

Creating Cloud Functions

Extending GraphQL Schema

Calling Cloud Functions

GraphQL API

REST API

Javascript SDK

iOS SDK

Android SDK

Flutter SDK

.NET SDK

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 mutation { 
  createCharacter(input: {
    fields: {
      name: "Luke Skywalker"
      birthYear: "19BBY"
      homeworld: {
        createAndLink: {
          name: "Tatooine"
          population: 200000
        }
      }
    }
  }) {
    character {
      id
      homeworld {
        id
      }
    }
  }
}

Need more information about the functions?

The foundation you need to build and scale apps

Whether it's your first build or you're scaling up, we're here to support you at every stage of development.

How scalable is Back4app?How secure is back4app?

Scale with confidence

Keep costs under control as you scale your apps with simple, predictable pricing. Scaling is automatic, and we guide the process to ensure everything runs smoothly.

Scale as high as you need

Add new features as you grow

Scale vertically or horizontally

Discover what you can build with Back4app

Whether you're starting from scratch or scaling up, our starter kits and examples will guide your app development.

ReactJS Slack Clone

A React Slack Clone template using real-time, relational queries and authentication.

View Code

Flutter User Login/SignUp

A user User Sign-up/Login Flutter starter kit to speed up your app development.

View Code

React Native Login/SignUp

A user sign-up/login flutter template using Parse.User className.

View Code

A supportive community to help you succeed

Building apps is easier with the right support. Connect with our developer community to sharpen your skills, get expert advice, and collaborate with peers as you build.