App Engine documentation

App Engine is a fully managed, serverless platform for developing and hosting web applications at scale. You can choose from several popular languages, libraries, and frameworks to develop your apps, and then let App Engine take care of provisioning servers and scaling your app instances based on demand.

Go to the App Engine product page for more.

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Documentation resources

Find quickstarts and guides, review key references, and get help with common issues.

Related resources

Explore self-paced training, use cases, reference architectures, and code samples with examples of how to use and connect Google Cloud services.
Training
Training and tutorials

Build a Python 3 app in the App Engine standard environment

Learn the basics of developing, and deploying Python 3 web services in the App Engine standard environment.

Training
Training and tutorials

Create a Java app in the App Engine flexible environment

Learn how to create and deploy an app that displays a short message in the App Engine flexible environment.

Training
Training and tutorials

Write and respond to Pub/Submessages

Understand how to use Cloud Client Libraries to send and receive Pub/Sub messages in the App Engine standard environment.

Training
Training and tutorials

Use Firestore in Datastore mode (Datastore)

Store and retrieve data in a Datastore database using Cloud Client Libraries in the flexible environment.

Training
Training and tutorials

Use Cloud Storage with App Engine

Store and retrieve data in Cloud Storage using Cloud Client Libraries in the standard environment.

Training
Training and tutorials

App Engine migration

Modernize your app to use the latest technologies

Code sample
Code Samples

Go sample apps

Includes Go samples for the App Engine standard environment and the flexible environment.

Code sample
Code Samples

Java sample apps

Includes Java samples for the App Engine standard environment and the flexible environment.

Code sample
Code Samples

Node.js sample apps

Includes Node.js samples for the App Engine standard environment and the flexible environment.

Code sample
Code Samples

PHP sample apps

Includes PHP samples for the App Engine standard environment and the flexible environment.

Code sample
Code Samples

Python sample apps

Includes Python samples for the App Engine standard environment and the App Engine flexible environment.

Code sample
Code Samples

Ruby sample apps

Includes Ruby samples for the App Engine standard environment and the App Engine flexible environment.

Code sample
Code Samples

.NET sample apps

Includes .NET samples for the App Engine flexible environment.

Related videos

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Last updated 2025-12-15 UTC.