Introduction
MildStack is a lightweight, local-first AWS emulator built for fast feedback loops. No Docker is required, and the runtime starts in around 200ms.
Welcome to MildStack
MildStack is a free, open-source alternative to LocalStack for local AWS development. It gives you a local AWS-compatible environment that starts in milliseconds, works offline, and keeps your feedback loop short.
No Docker. No containers. No waiting. MildStack runs as a native binary on your machine.
What Can You Do?
- Create S3 buckets and upload objects — just like in the real AWS
- Build DynamoDB tables with queries, scans, and secondary indexes
- Send and receive SQS messages with standard and FIFO queues
- Browse your resources visually with the Desktop App
- Use the standard AWS CLI and SDKs — just change the endpoint URL
Get Started in 30 Seconds
# 1. Start MildStack
mildstack start
# 2. Create an S3 bucket using the AWS CLI
aws s3 mb s3://my-bucket \
--endpoint-url http://localhost:4566
# 3. Upload a file
aws s3 cp ./hello.txt s3://my-bucket/ \
--endpoint-url http://localhost:4566That's it. Your local AWS environment is ready.
Explore the Docs
Overview
Learn what MildStack is and how it compares to alternatives.
Installation
Install the CLI and Desktop App on macOS, Windows, or Linux.
Quick Start
Get your first instance running with step-by-step examples.
Services
See all supported AWS operations for S3, DynamoDB, and SQS.
MildStack CLI
Manage your local instances from the terminal.
Desktop App
Browse and manage resources with a visual interface.