I made a local development, debugging and hotreload tool for AWS Lambda

In plain words

MerLoc is a development tool for AWS Lambda functions that lets developers run and debug Lambda functions locally while keeping them connected to cloud workflows. It enables testing without deploying to AWS, supports IDE breakpoints for debugging, and automatically hot-reloads code changes. Developers can test individual functions with real AWS requests without the build, package, and deployment cycle.

written from the facts on this page · September 2026

From the sources

MerLoc is a live AWS Lambda function development and debugging tool. MerLoc allows you to run AWS Lambda functions on your local while they are still part of a flow in the AWS cloud remote. - thundra-io/merloc-java

In the maker’s words, at launch

MerLoc is a live AWS Lambda function development and debugging tool. MerLoc allows you to run AWS Lambda functions on your local while they are still part of a flow in the AWS cloud remote. MerLoc makes it possible to - test your function locally without deploy to the AWS Lambda environment (so no wait for build…

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  MerLoc2022 · github.com · ▲93

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  I made an IDE plugin for AWS Lambda local dev, debugging and hot-reload2022 · github.com · ▲14

  MerLoc (https://github.com/thundra-io/merloc) is a live AWS Lambda function development and debugging tool. MerLoc allows you to run AWS Lambda functions on your local while they are still part of a flow in the AWS cloud remote and improves your productivity by applying your local changes to the function without need to build, package and re-deploy. For making MerLoc experience easier and smoother, I have published an IntelliJ IDEA plugin (https://plugins.jetbrains.com/plugin/19836-merloc--aws-lambd...). So IntelliJ IDEA users can develop, debug and…

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