QR Code API - Developer-first, free beta – Generate QR codes in 50ms with a simple REST API

Summary: QR Code API is a developer-focused service built with Go and AWS Lambda that generates customizable QR codes in under 50ms without requiring signup. It returns PNG images with base64 encoding and supports sizes from 256 to 2048 pixels.

What it does

The API produces QR codes quickly with options for custom colors and sizes, delivering PNG responses encoded in base64. It operates serverlessly on AWS Lambda with response times between 50 and 150 milliseconds.

Who it's for

Developers needing a fast, infrastructure-free QR code generation API with minimal setup and no dashboard dependency.

Why it matters

It eliminates signup and infrastructure overhead while providing a low-latency, scalable QR code generation solution on AWS free tier.