News, tutorials, and insights from the LocalStack team on cloud emulation, product showcases, and local development practices.https://blog.localstack.cloud/https://blog.localstack.cloud/build-authenticated-apps-locally-keycloak-localstack/https://blog.localstack.cloud/build-authenticated-apps-locally-keycloak-localstack/Learn how to use the Keycloak extension to add OAuth2/OIDC authentication to your AWS apps. Walk through a sample app with API Gateway, Lambda, and DynamoDB that uses Keycloak JWTs for role-based access control, all running locally without cloud dependencies.Mon, 20 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/how-to-build-your-own-localstack-extension/https://blog.localstack.cloud/how-to-build-your-own-localstack-extension/LocalStack Extensions can facilitate specialized workflows or development needs. This guide walks through using LocalStack's Extensions API to create a mock API for Anthropic, a popular LLM provider, that allows you to test your application code without relying on the live service.Thu, 16 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/3-things-to-know-about-localstack/https://blog.localstack.cloud/3-things-to-know-about-localstack/Let's look at 3 things you may not be aware of about LocalStack for AWS including that it's free for many use cases, has no CI limits and is validated against thousands of tests to ensure API accuracy.Fri, 10 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/running-localstack-on-kubernetes-for-local-aws-development-testing/https://blog.localstack.cloud/running-localstack-on-kubernetes-for-local-aws-development-testing/Learn how to run LocalStack on a local Kubernetes cluster using the LocalStack Operator, and deploy a Lambda function that queries an RDS MySQL database, with both running as pods in your cluster.Wed, 08 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/wth-are-ai-skills/https://blog.localstack.cloud/wth-are-ai-skills/AI agents can reason, but without structured actions they still guess at real-world workflows. This post explores the concept of AI agent skills and shows how LocalStack Skills provide deterministic, guardrailed automation for local AWS development.Tue, 07 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/localstack-champion-announcement/https://blog.localstack.cloud/localstack-champion-announcement/We’re launching the LocalStack Champions program to recognize developers who build, share, and support others in the community. If you’re creating content, helping in Slack, or building with LocalStack, this is your opportunity to get recognized.Thu, 02 Apr 2026 00:00:00 GMThttps://blog.localstack.cloud/introducing-localstack-for-open-source/https://blog.localstack.cloud/introducing-localstack-for-open-source/The LocalStack for Open Source program offers free licenses of LocalStack for AWS and LocalStack for Snowflake to eligible community open source projects to help speed up their development and lower their costs.Fri, 27 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/localstack-for-snowflake-2026-03-0-release/https://blog.localstack.cloud/localstack-for-snowflake-2026-03-0-release/LocalStack for Snowflake 2026.03.0 brings a massive list of improvements to our Snowflake emulation including to SQL scripting in stored procedures, GET_DDL support, FULL JOIN, enhanced web app UX, and support for over 50 different SQL functions.Tue, 24 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/localstack-for-aws-release-2026-03-0/https://blog.localstack.cloud/localstack-for-aws-release-2026-03-0/LocalStack for AWS 2026.03.0 represents a major shift in how LocalStack for AWS is released including a move to a consolidated Docker image, calendar versioning, no CI credit limits, a new CLI and much more.Mon, 23 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/switching-to-calendar-versioning/https://blog.localstack.cloud/switching-to-calendar-versioning/Starting with the March 2026 release, all LocalStack products follow a new YYYY.MM.patch version format. Here's what's changing and what it means for you.Wed, 18 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/build-search-apps-locally-paradedb-localstack/https://blog.localstack.cloud/build-search-apps-locally-paradedb-localstack/Learn how to build search applications locally with LocalStack and ParadeDB, a Postgres-based search and analytics engine including a sample app to understand the schema, data and query relationships, and how LocalStack and ParadeDB fit together.Thu, 12 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/localstack-single-image-next-steps/https://blog.localstack.cloud/localstack-single-image-next-steps/Starting March 23, 2026, LocalStack for AWS will ship as a single, unified container image requiring an auth token. This post explains what’s changing, what your options are, and how to migrate from LocalStack Community usage to the unified image.Thu, 05 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/aws-deep-dives-sns/https://blog.localstack.cloud/aws-deep-dives-sns/Amazon SNS (Simple Notification Service) is a fully managed publish-subscribe (pub/sub) messaging service that enables fan-out communication between applications and directly to end users.Tue, 03 Mar 2026 00:00:00 GMThttps://blog.localstack.cloud/2026-upcoming-pricing-changes/https://blog.localstack.cloud/2026-upcoming-pricing-changes/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.Fri, 27 Feb 2026 00:00:00 GMThttps://blog.localstack.cloud/localstack-for-aws-release-v-4-14-0/https://blog.localstack.cloud/localstack-for-aws-release-v-4-14-0/LocalStack for AWS 4.14 introduces the new Resource Groups Tagging API provider, KRaft support for MSK, Glue as the default metastore for Hive, EKS IMDS integration, and enhancements across CloudFormation, Step Functions, S3, Route 53, ECS, and more.Thu, 26 Feb 2026 00:00:00 GMT