# dherault/serverless-offline

Emulate AWS λ and API Gateway locally when developing your Serverless project

Repository: https://github.com/dherault/serverless-offline
Canonical: https://ross.abutalabs.com/products/serverless-offline
Language: JavaScript
License: MIT
License Family: permissive
Topics: serverless, aws-lambda, aws-apigateway
Last push: 2026-08-14T14:45:25+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 97, release rhythm 96, longevity 100
- inputs: {"age_days": 3850, "days_push": 19, "days_rel": 26, "gap_med": 11.0, "n_releases_24m": 17}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5260, forks 810 (observed 2026-08-28T04:09:13.827547+00:00)

## What it is
A Serverless Framework plugin that emulates AWS Lambda and API Gateway on your local machine. It starts an HTTP server that replicates the API Gateway request lifecycle and invokes your Lambda handlers locally to speed up development.

## Use cases
- test lambda functions locally without deploying to aws
- emulate api gateway on my machine
- speed up serverless development cycles
- run serverless framework project offline
- test lambda authorizers locally
- debug api gateway integrations before deployment

## When to choose
- you develop Serverless Framework projects and want fast local iteration without deploying
- you need to test API Gateway routing, authorizers, CORS, or Velocity templates locally
- you work with multiple Lambda runtimes (Node.js, Python, Ruby, Go, Java) locally

## When to avoid
- you use AWS SAM or CDK, which have their own local emulation tools
- you need exact production parity for integration testing - use real AWS or a full emulator like LocalStack
- your project does not use the Serverless Framework

## Facets
- artifact type: plugin
- maturity: active
- function: http-server, middleware, testing, developer-tools
- domain: developer-tools, backend, apis, cloud-computing
- platform: cross-platform, cli
- tags: serverless-framework, aws-lambda, api-gateway, local-development, emulation, serverless, nodejs

## Member repositories
- dherault/serverless-offline (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:13.827547+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:59:30.711205+00:00, confidence not recorded.
  - readme: https://github.com/dherault/serverless-offline (fetched 2026-08-28T04:09:13.827547+00:00, sha 75080ed7d200)
- Data as of 2026-08-30T08:39:29.467469+00:00.