Emulate AWS services locally for faster, cheaper development
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2 reviews tracked·1 press mentionThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Test without AWS costs
Biggest con
Not perfect parity
TL;DR - LocalStack
- Run AWS services locally for development
- Emulate S3, Lambda, DynamoDB and more
- Faster and cheaper testing without cloud
Pricing: Free plan available
Best for: Growing teams
What is LocalStack?
LocalStack is a cloud service emulator that runs in a single container, providing AWS-compatible APIs for local development and testing. Test Lambda functions, S3 buckets, DynamoDB tables, and more without AWS accounts or costs. Speed up development with instant provisioning and eliminate cloud expenses during development. LocalStack ensures your code works with AWS services before deploying to the real cloud.
Available on: Web, macOS, Linux, Windows
Pros & Cons
Pros
- Test without AWS costs
- Fast iteration
- Full AWS API
Cons
- Not perfect parity
- Some features paid
Ratings Across the Web
4.5(2 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
AWS emulationLocal developmentCI/CD integrationPersistencePro servicesOpen source
Pricing Plans
Free TrialPricing checked Jun 14, 2026
Free
Free
- 30+ emulated services
- Community access
- Basic support
Base
$39/month
- 55+ services
- 300 CI credits
- Local state persistence
- IAM Policy Enforcement
Ultimate
$89/month
- 110+ services
- 1000 CI credits
- 3GB Cloud pods
- Priority support
Enterprise
Custom
- Offline operation
- SSO controls
- E2E encryption
- Dedicated support
Reviews
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LocalStack FAQ
How does LocalStack facilitate local development of serverless applications?
LocalStack allows developers to test Lambda functions, S3 buckets, and DynamoDB tables locally without needing an AWS account. It provides AWS-compatible APIs in a single container, enabling faster iteration and development cycles for serverless architectures.
What kind of user benefits most from LocalStack?
Development teams and individual developers who build applications designed to run on AWS will find LocalStack most beneficial. It helps them test their code against AWS services efficiently before deployment to the actual cloud environment.
How is LocalStack priced?
LocalStack is available on a free tier, which allows users to get started with basic emulation capabilities. For more extensive usage and advanced features, paid plans are offered.
What are the main trade-offs when using LocalStack for AWS emulation?
While LocalStack offers extensive AWS API compatibility, it does not achieve perfect parity with all AWS services. Additionally, some of its advanced features are only available through paid plans.
Can LocalStack be used to test applications that rely on S3 storage?
Yes, LocalStack allows developers to test applications that utilize S3 buckets directly on their local machines. This eliminates the need for an AWS account during the development and testing phases, reducing costs and speeding up the process.
How does LocalStack compare to a tool like Docker for local development?
LocalStack specifically emulates AWS cloud services, providing AWS-compatible APIs within a single container for local testing. Docker, on the other hand, is a general-purpose containerization platform used to package and run applications in isolated environments, which can include LocalStack itself.
Source: localstack.cloud