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Top 23 JavaScript aws-lambda Projects
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Previous Serverless Version 0.5.x
⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services.
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formidable
The most used, flexible, fast and streaming parser for multipart form data. Supports uploading to serverless environments, AWS S3, Azure, GCP or the filesystem. Used in production.
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aws-lambda-power-tuning
AWS Lambda Power Tuning is an open-source tool that can help you visualize and fine-tune the memory/power configuration of Lambda functions. It runs in your own AWS account - powered by AWS Step Functions - and it supports three optimization strategies: cost, speed, and balanced.
Project mention: Your Lambda Memory is Wrong: Auto-Tune It and Save 40% in Minutes ⚡ | dev.to | 2026-02-11AWS Lambda Power Tuning is an open-source Step Functions state machine that:
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serverless-express
Run Express and other Node.js frameworks on AWS Serverless technologies such as Lambda, API Gateway, Lambda@Edge, and more.
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Project mention: Beyond the Black Box: Mastering Serverless Debugging and Observability | dev.to | 2025-06-16
One of the most effective ways to debug serverless functions is to run them locally. Tools like the Serverless Framework Offline plugin, AWS SAM CLI, and LocalStack allow developers to emulate AWS Lambda and API Gateway, or even entire AWS services, on their local machines. This provides a familiar debugging experience, enabling the use of breakpoints and step-through debugging without incurring cloud costs or deployment delays.
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Since I was already using middy in the project, I discovered their http-router: a simple utility that forwards events to handlers based on method and path. It also handles extracting path parameters if you're using a /{proxy+} route in your API Gateway.
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And then I looked at how many Node.js projects still depend on dynalite for local DynamoDB. I owe a lot to dynalite. Using it through arc.codes and Architect is what turned DynamoDB from a database I'd reach for occasionally into the one I'd reach for first. Having a fast local emulator that just worked changed how I thought about building with DynamoDB. It made the feedback loop tight enough that I actually wanted to experiment. But dynalite hasn't seen updates in a while and newer DynamoDB features like transactions and streams aren't covered. Dynoxide supports both, along with the rest of the API surface. With an npm package shipping platform-specific binaries (the same approach esbuild and Biome use), it works as a drop-in replacement. Same workflow, one line change in your package.json.
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aws-ai-stack
AWS AI Stack – A ready-to-use, full-stack boilerplate project for building serverless AI applications on AWS
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serverless-wsgi
Serverless plugin to deploy WSGI applications (Flask/Django/Pyramid etc.) and bundle Python packages
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express
⚡ Take existing Express.js apps and host them easily on cheap, auto-scaling, serverless infrastructure (AWS Lambda and AWS HTTP API). (by serverless-components)
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serverless-prune-plugin
Serverless Framework plugin to reap unused versions of deployed functions from AWS
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript aws-lambda discussion
JavaScript aws-lambda related posts
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Introducing Dynoxide: a fast, embeddable DynamoDB engine
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Your Lambda Memory is Wrong: Auto-Tune It and Save 40% in Minutes ⚡
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Simple build and run NodeJS application on AWS (Lambda) using Architect (arc.codes)
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Fully-Typed HTTP Router for AWS Lambda with Middy and Zod
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Why and how to optimize your Lambda
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Conquering Cold Starts: Strategies for High-Performance Serverless Applications
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Beyond the Black Box: Mastering Serverless Debugging and Observability
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A note from our sponsor - SaaSHub
www.saashub.com | 12 Jun 2026
Index
What are some of the best open-source aws-lambda projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Previous Serverless Version 0.5.x | 46,922 |
| 2 | formidable | 7,177 |
| 3 | aws-lambda-power-tuning | 6,020 |
| 4 | serverless-express | 5,268 |
| 5 | serverless-offline | 5,259 |
| 6 | Grant | 4,172 |
| 7 | middy | 3,900 |
| 8 | claudia | 3,894 |
| 9 | lib | 3,823 |
| 10 | serverless-chrome | 2,890 |
| 11 | architect | 2,618 |
| 12 | aws-lambda-ses-forwarder | 1,727 |
| 13 | lambda-api | 1,467 |
| 14 | serverless-plugin-warmup | 1,123 |
| 15 | aws-ai-stack | 998 |
| 16 | sls-dev-tools | 872 |
| 17 | Sparta | 715 |
| 18 | serverless-localstack | 543 |
| 19 | serverless-wsgi | 499 |
| 20 | stellarterm | 463 |
| 21 | serverless-plugin-canary-deployments | 374 |
| 22 | express | 374 |
| 23 | serverless-prune-plugin | 368 |
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