localstack
The LocalStack Command Line Interface
Decision gist · record as of 2026-08-14
Yes, if you actively develop AWS-based applications and need local testing—the low install friction and permissive license make it accessible. However, the abandoned maintenance status (archived repo, last commit 2026-03-23) is a significant concern: verify that the version you need is stable and that PYSEC-2023-243 does not affect your use case.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Docker to be installed and running; Python >= 3.10
- Low friction install with a pure-Python wheel, but the repository is marked archived and maintenance status is abandoned as of the latest release 17 days ago.
- The last commit was 2026-03-23.
License · maintenance · safety
Apache-2.0 (permissive) — Licensed under Apache-2.0 (permissive), so you can use, modify, and distribute it freely in commercial and private projects without restriction.
last release 2026-07-28 (17 days) · last repo commit 2026-03-23 · 65,148 stars · archived
1 known vulnerabilities (OSV.dev, 2026-08-14) · 787,734 downloads/mo, #5,061 on PyPI
Alternatives
Verify before relying
pip install localstack
localstack start
localstack status services
localstack stop- Whether the archived repository status means active maintenance has ceased or if development continues elsewhere
- Current status of PYSEC-2023-243 vulnerability and whether it affects this version
- Whether high download volume reflects active ongoing use or legacy adoption
What it is and what it does
LocalStack is a command-line interface for running a local AWS cloud service emulator. It lets you spin up mock versions of AWS services in Docker containers on your machine, so you can develop and test cloud applications without deploying to real AWS or incurring costs.
The tool manages the lifecycle of these emulated services through simple commands: start the stack, check service status, and stop when done. It's commonly used in local development workflows and CI/CD pipelines to validate cloud application behavior in isolation. The package depends on Docker for containerization and includes utilities for configuration, authentication simulation, and service management.
Use it for
- Develop AWS Lambda functions locally without deploying to real AWS
- Test S3 bucket operations and DynamoDB queries in isolation during development
- Run integration tests in CI pipelines that exercise cloud service interactions
- Prototype multi-service cloud architectures on a single machine before deployment
- Avoid AWS charges during development and testing cycles
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you actively develop AWS-based applications and need local testing—the low install friction and permissive license make it accessible.
However, the abandoned maintenance status (archived repo, last commit 2026-03-23) is a significant concern: verify that the version you need is stable and that PYSEC-2023-243 does not affect your use case.
Install
localstack on PyPI
Before you install
Low friction install with a pure-Python wheel, but the repository is marked archived and maintenance status is abandoned as of the latest release 17 days ago. The last commit was 2026-03-23.
Requires Docker to be installed and running; Python >= 3.10
License in practice
Licensed under Apache-2.0 (permissive), so you can use, modify, and distribute it freely in commercial and private projects without restriction.
Quickstart
pip install localstack
localstack start
localstack status services
localstack stopVerify before relying
- Whether the archived repository status means active maintenance has ceased or if development continues elsewhere
- Current status of PYSEC-2023-243 vulnerability and whether it affects this version
- Whether high download volume reflects active ongoing use or legacy adoption
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 20 packagesasn1cryptocachetoolsclickcryptographydnslibdnspythondockerpackagingpluxpsutilpyjwtpyotppython-dateutilpython-dotenvpyyamlrequestsrichsemvertabulatewindows-curses |
| Maintenance | Abandoned 17 days since the last release |
| Last repo commit | repository archived |
| First released | |
| Downloads | 787,734 / month, #5,061 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | 1 PYSEC-2023-243 |
| Classifiers | Programming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Topic :: InternetTopic :: Software Development :: Testing |
Evidence: localstack-2026.7.1-py3-none-any.whl
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See also localstack-ext · localstack-client · gcp-storage-emulator · awscli-local · terraform-local · moto-ext · pulumi-local · localstack-twisted · testcontainers-postgres · pip-upgrader