In mid-2026, AWS released the public preview of AWS Blocks, a TypeScript-based open-source framework that enables developers to build backend features such as databases, authentication, real-time messaging, and AI agents locally without needing an AWS account. The same code seamlessly deploys to AWS production services when ready, supporting frontend frameworks like React and Next.js.
This framework aims to reduce learning barriers by providing a fully functional local environment and built-in guidance for AI coding tools, promoting end-to-end type safety without code generation steps. AWS Blocks is available at no extra charge aside from standard AWS service usage fees and supports deployment across all commercial AWS regions.
Source & further reading
AWS announces AWS Blocks, an open-source framework for composing application backends on AWS (Preview) ↗Source published 2026-06-16. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.