LocalStack
LocalStack: A focused cloud emulator for testing AWS integrations locally and in CI. Ranked #21 of 27 in Integration Testing Tools by our editors (7.1/10); pricing: Free plan; best for AWS and cloud-service integration testing.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forAWS and cloud-service integration testing
- Free planYes
- Paid from$39/user/mo
- Database testingYes
- Founded2016 · Zurich, Switzerland
- Facts checked20 Sep 2026
Where it wins
- Emulates 30+ AWS services on the free Hobby plan
- Supports CI/CD, Terraform, CDK, CloudFormation, and major AWS SDKs
- Offers reusable environments, state persistence, and ephemeral sandboxes
Where it doesn't
- Hobby is limited to non-commercial use
- Paid Base and Ultimate plans are priced per license
- Its focus is cloud emulation rather than general integration testing
Our verdict on LocalStack
LocalStack is a cloud service emulator and development platform for teams building, testing, and debugging AWS and Snowflake applications. It runs simulated cloud environments on developer machines, CI runners, or centralized infrastructure, helping teams test integrations without relying on live cloud accounts or shared staging environments. The product supports Linux, macOS, Windows, web, API, and self-hosted deployments, with AWS SDK connectivity for .NET, C++, Go, Java, JavaScript, PHP, Python, and Ruby. It is aimed at individual developers, small teams, and enterprises with centralized deployment and governance needs.
Pricing separates personal experimentation from commercial development. The free Hobby plan includes 30+ emulated AWS services, one personal sandbox, CI testing, basic support, and non-commercial use. The Base plan costs $39 per license per month when billed annually or $45 monthly, adding 55+ services, a personal sandbox for each developer, local state persistence, 300 MB of cloud state storage per workspace, and 100 application-preview minutes per workspace per month. Ultimate costs $89 per license per month when billed annually and adds 110+ services, advanced IAM policy testing, a live AWS resource replicator, 3 GB of cloud state storage, 500 preview minutes, and priority support. Enterprise adds flexible deployment options, Kubernetes delivery, additional AWS regions and GovCloud, custom SSO and SCIM, offline and air-gapped image delivery, and enterprise support.
Its strongest fit is for teams validating infrastructure and service interactions before deployment. LocalStack integrates with GitHub Actions, CircleCI, Bitbucket, AWS CodeBuild, GitLab CI, Travis CI, Terraform, AWS CDK, CloudFormation, and VS Code. RDS emulation covers PostgreSQL, MariaDB, MySQL, and SQL Server, while state snapshots, persistence, Cloud Pods, IAM enforcement, and AWS resource replication support repeatable testing. Choose LocalStack when AWS or Snowflake emulation is central to the workflow; teams seeking a broader, cloud-agnostic integration-testing tool may prefer a different focus.
Your product? Our editors can test LocalStack in depth and publish a review, labelled as paid · from $149/mo →
LocalStack pricing
All 4 LocalStack plans and prices →
LocalStack fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $39/user/mo |
| Database testing | Yes |
| Contract testing | Not verified |
| Service virtualization | Yes |
| Parallel runs | Not verified |
| Deployment model | Both |
| Supported languages | C#, C++, Go, Java, JavaScript, PHP, Python, Ruby |
| Test data management | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Linux, macOS, Windows |
| Compliance & security | GDPR |
| Support | Email, Live chat, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: GitHub Actions, CircleCI, Bitbucket, AWS CodeBuild, GitLab CI, Travis CI … |
| Pricing | Free plan (source) |
| Website | localstack.cloud |
| Facts checked | 20 Sep 2026 |
LocalStack integrations
LocalStack lists 10 integrations on its own site.
- GitHub Actions
- CircleCI
- Bitbucket
- AWS CodeBuild
- GitLab CI
- Travis CI
- Terraform
- AWS CDK
- CloudFormation
- VS Code
Alternatives to LocalStack
- SoapUIA mature, free desktop choice for broad REST, SOAP, and GraphQL testing.9.3
- Tricentis ToscaA broad codeless testing platform for enterprise teams, with contact-sales pricing.9.0
- KarateA broad, free API integration testing suite with paid IDE and enterprise options.8.9
See all LocalStack alternatives →
Also Ranked In
LocalStack is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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