Friendly reminder: deploying an entire AWS stack just to test one line of code is a choice.

LocalStack for AWS is moving to a single unified Docker image. If you're currently using the community image, there are a few things you'll want to update before the transition. This post walks through the next steps and what the change means for developers. blog.localstack.cloud/localstack-s...

SNS looks simple… until you actually architect with it 😅 New deep dive covers: ✨ Fan-out patterns ✨ Filtering strategies ✨ Real serverless use cases ✨ Testing locally with LocalStack Worth a read if you're building event-driven systems. 👉🏾 blog.localstack.cloud/aws-deep-div...

We've listened to our community and are adjusting our pricing and packaging, including unlimited CI credits on all plans, a free non-commercial tier, extended trials, a low-cost monthly commercial plan, and free access for open-source projects. blog.localstack.cloud/2026-upcomin...

🚀 LocalStack for AWS 4.14.0 is out! What's new ▶️ 🏷️ New Resource Groups Tagging provider ⚡ KRaft support for MSK 🗄️ Glue as default Hive metastore ☸️ EKS IMDS integration 🔄 Step Functions, S3, ECS, CloudFormation, Route 53 enhancements Learn more 👇 blog.localstack.cloud/localstack-f...

We're excited to kick off our upcoming meetup, where we'll explore how TypeDB redefines data modeling for complex domains and how to build knowledge graph applications locally without external infrastructure. youtu.be/Tp-7_q5UAEE

Join us tomorrow to learn how you can streamline local graph development. Joshua's talk will explore the shortcomings of Property Graphs and introduce TypeDB, which combines the connectivity of a graph with the integrity of a relational model. RSVP 👉 www.meetup.com/localstack-c...

Introducing LocalStack Skills! 🎉 You can start using: - localstack-lifecycle - iac-deployment - state-management - logs-analysis - iam-policy-analyzer - localstack-extensions To start, run: `npx skills add localstack/skills` Feedback? Share here 👉 github.com/localstack/s...

AI can be super useful at accelerating work on your infrastructure as code (IaC), but we all know it can make mistakes – sometimes big ones! A local or CI sandbox using LocalStack can help you leverage AI while reducing the risk to your testing and production environments.

Ready to give LocalStack a try but not sure how to get started? Kiah will get you up and running in just minutes via 4 easy steps. By the end, you'll deploy a full application on your laptop using Terraform. Watch here 👉 www.youtube.com/watch?v=GvkX...

Excited to announce our next meetup with TypeDB! 🎉 🔹 Joshua will explain why Property Graphs aren't enough for complex domains & how TypeDB fixes that. 🔹 Harsh will demo the TypeDB extension for LocalStack to build & test graph apps locally. RSVP 👉 www.meetup.com/localstack-c...

Join a live panel on February 26th at 11am ET (GTM -5) featuring CTOs & leaders from Docker, StrongDM, LocalStack and WireMock on the role of simulation, emulation, and digital twins in AI-augmented development. info.wiremock.io/live-panel-e...

Our CTO, Waldemar Hummer, is speaking at WireMock’s live panel on environment sprawl. 🎤 As AI accelerates code generation, realistic test environments are becoming the real bottleneck. 🗓 Thursday, February 26 🕰️ 8am PST / 11am ET / 4pm GMT info.wiremock.io/live-panel-e...

Snowflake scripting got more powerful with the release of LocalStack for Snowflake 1.7 ❄️ blog.localstack.cloud/localstack-f...

💸 Your AWS dev accounts are more expensive than you think. Most enterprises create multiple AWS dev and test accounts to isolate teams and reduce risk. www.localstack.cloud

🧪 Simulate external APIs locally without breaking your feedback loop. Modern cloud apps rarely talk only to AWS. They also depend on third-party HTTP APIs like payment providers, identity services, partner platforms, or AI APIs. blog.localstack.cloud/simulate-ext...

Knowledge graphs, but make them local This guide walks through building knowledge graph applications using LocalStack + TypeDB, all without touching the cloud. Perfect for experimenting with complex data relationships blog.localstack.cloud/build-knowle...

LocalStack for AWS 4.13 is out! This release adds support for the .NET 10 runtime in Lambda, improvements to ECS emulation, better routing parity in Route 53 and API Gateway, and much more. Get the full details 👉️ blog.localstack.cloud/localstack-f...

It's not unusual for your AWS application to have 3rd/1st party dependencies on APIs, but this can really slow down development & testing. Join us tomorrow at 3pm GMT to see how the combo of LocalStack & WireMock solves these problems and increases your velocity. www.meetup.com/localstack-c...

Learn how to build and run your first AWS-style application entirely on your local machine ☁️ 💻 This step-by-step guide walks through installing LocalStack, configuring authentication, and deploying a real serverless app without deploying to AWS. Read 👉 blog.localstack.cloud/first-local-...

Join our January meetup to learn how to build a unified, local testing environment that handles both AWS services and external APIs. 💪🏿 Stop wrestling with cloud latency and complex dependencies. You deserve better! www.meetup.com/localstack-c...

Multi-runtime testing is harder than it looks. Supporting multiple AWS Lambda runtimes isn’t just about adding a new version flag. Each runtime has differences in: · dependency resolution · build tooling & packaging · test isolation & execution order docs.localstack.cloud/aws/services...

.NET 10 support just landed in LocalStack 💪🏿 AWS recently released the new .NET 10 Lambda runtime, and we’ve already added support for it in LocalStack. 👉 PR: github.com/localstack/l...

LocalStack for Snowflake 1.6 is now available ❄️ It improves Iceberg integration for AWS S3 Tables and Polaris vended credentials, introduces new SQL functions, and delivers targeted parity updates. blog.localstack.cloud/localstack-f...

If you’re using Terraform and GitHub Actions, this one’s for you 👀 Learn how to automate Terraform testing locally with LocalStack so your CI runs faster without touching real cloud resources. 📖 🔗https://blog.localstack.cloud/automate-terraform-testing-localstack-github-actions/

Choose peace. Choose local.

We shared an update on what’s next for LocalStack 👀 Unified AWS image, changes coming in March 2026, and clarity on what remains free for the community. If LocalStack is part of your workflow, check it out 👇🏾

What if your AI coding assistant could not only write infrastructure code, but also deploy it, test it, and fix issues automatically — all on your local machine? That's exactly what the LocalStack MCP Server makes possible. Learn more about it here 👉 youtu.be/9DLSr7fxNag

You mean we should break things...on purpose?! Yes! Intentionally adding errors & latency into your app with chaos engineering helps ensure it is resilient when problems occur. Even better, as Kiah Imani shows, you can do this testing locally without risking production. youtu.be/nSEfnAgBjh0

LocalStack for Snowflake 1.5 introduces new SQL functions, enhanced support for Iceberg tables with CTAS, and parity improvements for window functions, large timestamps, & stage file operations for better local Snowflake development. Check it out here 👉 blog.localstack.cloud/localstack-f...

LocalStack for AWS 4.12 is out! It includes support for Lambda Managed Instances, enhanced unit testing for Step Functions, expanded Glue API support & improvements to S3 Tables, EventBridge Pipes, ELB, IAM, and more. Details here 👉 blog.localstack.cloud/localstack-f...

AWS Fault Injection Service (FIS) provides an API for injecting faults into your application to test resiliency. LocalStack enables creating FIS experiments & test them locally. In this post, Harsh Mishra shows how this works by injecting EC2 faults into an app. blog.localstack.cloud/testing-aws-...

There are 3 options for testing cloud applications: real cloud services, mocks or LocalStack for emulation. In this presentation, Fernando Teixeira shows why emulation offers the benefits of realistic tests that mocks cannot without the escalating costs of real cloud. www.youtube.com/watch?v=paSJ...

We're still feeling energized by last week's Re:Invent with one highlight being our CTO and co-founder Waldemar Hummer's lightning talk. If you missed it, it's already up on YouTube. Catch the replay here: www.youtube.com/watch?v=z0G0...

Wrapping up re:Invent 2025 with the team that brings local-first development to life every single day. 💻 ☁️

📹 Day 4 at re:Invent: Wrapping Up, Winding Down That’s a wrap on re:Invent 2025! The LocalStack booth is packed. The team is exhausted. And our hearts? Very, very full. 🫶🏿 www.youtube.com/watch?v=W-KF...

On Day 3 at AWS re:Invent, our CTO Waldemar Hummer and Shridhar Pandi took the spotlight with their lightning talk: “Developing Serverless Applications Locally with AWS and LocalStack," showing how the AWS Toolkit for VS Code now integrates directly with LocalStack. www.youtube.com/watch?v=xZGh...

The AWS Step Functions team just released new enhancements to the TestState API which LocalStack supports: ✅ Mock Task state results ✅ Skip execution roles in mocking ✅ Test *every* state type ✅ Submit full state machine definitions ✅ Mock context fields 🔗 blog.localstack.cloud/effective-un...

Day 2 at AWS re:Invent 2025 brings more fun and prizes! 🎮 What a whirlwind! Day 2 at re:Invent was even more action-packed, and we've got the footage to prove it. From excited raffle entries to quick-thinking demo saves, our booth was buzzing. 🔗 www.youtube.com/watch?v=cW3b...

The LocalStack team is LIVE at AWS re:Invent 2025! We are absolutely buzzing to be here in Las Vegas this week! 🙌🏿 Day 1 at the Expo booth was an absolute blast. We captured all the energy and excitement in our latest YouTube video! 📍 Booth #1626 🔗 www.youtube.com/watch?v=O0Tz...

Validate Your IaC Stack in 7 Seconds (Not 7 Minutes!) 🤯 Engineers, let's talk about the biggest bottleneck in cloud development: Infrastructure-as-Code (IaC) deployment time. It’s beyond painful. docs.localstack.cloud/aws/integrat...

AWS just launched Lambda Managed Instances and LocalStack already supports it. 💪🏿 This new Lambda capability lets you run functions on EC2 instances for more predictable cost, hardware choice, and tighter control over execution environments. blog.localstack.cloud/testing-loca...

For those celebrating Thanksgiving today, we hope you enjoy a wonderful day with friends and family – and getting your needed pre-Re:Invent rest!

LocalStack for AWS 4.11 is out! It's got lots of goodies: * New Lambda runtimes * Improvements to MSK), S3 Tables, CodePipeline & KMS * Improved support for testing ML workflows in RDS * Support for persisting EKS cluster contents Get all the details here: blog.localstack.cloud/localstack-f...

What if your AWS serverless bugs were autonomously found, fixed and tested while you slept, allowing you to wake up to validated PRs in the morning rather than bug reports and tickets? That's the promise of combining LogicStar's automated AI tooling with LocalStack.

Join our session to explore how AI agents are enabling systems that can autonomously detect, diagnose, and fix bugs. Boris Paskalev will show how AI agents can detect prod bugs, reproduce them, and generate validated PR with fixes, thereby removing bottlenecks from the debugging cycle.

Local Lambda testing hits different 😭🔥

⏳ T-minus 2 weeks to re:Invent! LocalStack will be in Vegas with demos, raffles, and plenty of cloud energy. See you there!

🚀 LocalStack for Snowflake 1.4 is here! More SQL support, better Snowflake parity, improved result handling, and smoother local dev. 🔗 blog.localstack.cloud/localstack-f...

The final episode of our Getting Started w/ LocalStack series is live This time, we explore the LocalStack Chaos Dashboard to simulate real outages like DynamoDB errors and see how applications respond when things break. Watch here: www.youtube.com/watch?v=tRVP...