serverless-aws-lambda
AWS Application Load Balancer and API Gateway - Lambda dev tool for Serverless. Allows Express synthax in handlers. Supports packaging, local invoking and offline ALB, APG, S3, SNS, SQS, DynamoDB Stream server mocking.
mixpanel-lite
A lightweight alternative to mixpanel-js with offline support for PWAs
formstash
A React component wrapper for forms that saves data in real-time to IndexedDB