Programming language: Python
License: GNU General Public License v3.0 or later
Tags: Software Development     Testing     System     Internet     FaaS/Serverless     Emulators    
Latest version: v0.12.2

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LocalStack provides an easy-to-use test/mocking framework for developing Cloud applications.

Overview โ€ข Install โ€ข Example โ€ข Run โ€ข Usage โ€ข Changelog โ€ข Contributing โ€“ ๐Ÿ“– Docs โ€ข ๐Ÿ’ป Pro version โ€ข โ˜‘๏ธ Feature coverage โ€ข ๐Ÿ“ข Announcements


LocalStack ๐Ÿ’ป is a cloud service emulator that runs in a single container on your laptop or in your CI environment. With LocalStack, you can run your AWS applications or Lambdas entirely on your local machine without connecting to a remote cloud provider! Whether you are testing complex CDK applications or Terraform configurations, or just beginning to learn about AWS services, LocalStack helps speed up and simplify your testing and development workflow.

LocalStack supports a growing number of AWS services, like AWS Lambda, S3, Dynamodb, Kinesis, SQS, SNS, and many more! The Pro version of LocalStack supports additional APIs and advanced features. You can find a comprehensive list of supported APIs on our โ˜‘๏ธ Feature Coverage page.

LocalStack also provides additional features to make your life as a cloud developer easier! Check out LocalStack's Cloud Developer Tools for more information.


  • python (Python 3.7 up to 3.10 supported)
  • pip (Python package manager)
  • Docker


The easiest way to install LocalStack is via pip:

pip install localstack

Note: Please do not use sudo or the root user - LocalStack should be installed and started entirely under a local non-root user. If you have problems with permissions in macOS High Sierra, install with pip install --user localstack

It installs the localstack-cli which is used to run the Docker image that hosts the LocalStack runtime.


Start LocalStack inside a Docker container by running:

 % localstack start -d

     __                     _______ __             __
    / /   ____  _________ _/ / ___// /_____ ______/ /__
   / /   / __ \/ ___/ __ `/ /\__ \/ __/ __ `/ ___/ //_/
  / /___/ /_/ / /__/ /_/ / /___/ / /_/ /_/ / /__/ ,<

 ๐Ÿ’ป LocalStack CLI 1.0.0

[20:22:20] starting LocalStack in Docker mode ๐Ÿณ
[20:22:21] detaching

You can query the status of respective services on LocalStack by running:

% localstack status services
โ”ƒ Service                  โ”ƒ Status      โ”ƒ
โ”‚ acm                      โ”‚ โœ” available โ”‚
โ”‚ apigateway               โ”‚ โœ” available โ”‚
โ”‚ cloudformation           โ”‚ โœ” available โ”‚
โ”‚ cloudwatch               โ”‚ โœ” available โ”‚
โ”‚ config                   โ”‚ โœ” available โ”‚
โ”‚ dynamodb                 โ”‚ โœ” available โ”‚

To use SQS, a fully managed distributed message queuing service, on LocalStack, run:

% awslocal sqs create-queue --queue-name sample-queue
    "QueueUrl": "http://localhost:4566/000000000000/sample-queue"

Learn more about LocalStack AWS services and using them with LocalStack's awslocal CLI.


You can run LocalStack through the following options:


To start using LocalStack, check out our documentation on docs.localstack.cloud.

To use LocalStack with a graphical user interface, you can use the following UI clients:

Change Log

Please refer to GitHub releases to see the complete list of changes for each release.


If you are interested in contributing to LocalStack:

We are thankful for all the contributions and feedback we receive.

Get in touch

To get in touch with LocalStack team for bugs/feature requests, support questions or general discussions, please use:


We are thankful to all the people who have contributed to this project.


We are also grateful to all our backers who have donated to the project. You can become a backer on Open Collective.


You can also support this project by becoming a sponsor on Open Collective. Your logo will show up here along with a link to your website.


Copyright (c) 2017-2022 LocalStack maintainers and contributors.

Copyright (c) 2016 Atlassian and others.

This version of LocalStack is released under the Apache License, Version 2.0 (see LICENSE.txt). By downloading and using this software you agree to the [End-User License Agreement (EULA)](doc/end_user_license_agreement). To know about the external software we use, look at our [third party software tools](doc/third-party-software-tools/README.md) page.

*Note that all licence references and agreements mentioned in the LocalStack README section above are relevant to that project's source code only.