zoom_in Click to enlarge

AWS SDK for JavaScript

▲ ▼

description AWS SDK for JavaScript Overview

For building robust, scalable cloud-native applications, the AWS SDK provides direct, comprehensive access to Amazon Web Services' vast array of services. It allows developers to manage compute (Lambda), storage (S3), databases (DynamoDB), and networking components programmatically. Its maturity and sheer breadth of supported services make it indispensable for enterprise-grade backend development.

help AWS SDK for JavaScript FAQ

What's the difference between AWS SDK for JavaScript v2 and v3?

v3, which reached general availability in December 2020, is modular: each AWS service ships as its own package like @aws-sdk/client-s3, instead of v2's giant aws-sdk monolith. v2 entered maintenance mode in 2023 with AWS announcing end of support in 2025, so new projects should start on v3.

How do I install only the S3 client to keep my bundle small?

Run npm install @aws-sdk/client-s3 and import S3Client and the command classes from that package alone. That per-service install is the headline v3 feature, and it can shrink browser bundles dramatically compared with pulling in every AWS service.

Does the AWS SDK for JavaScript work in the browser?

Yes, v3 is designed to run in both Node.js and modern browsers, with tree-shakeable ES modules for the browser build. For unauthenticated or user-pool web access, the standard pattern is exchanging Amazon Cognito tokens for temporary AWS credentials rather than embedding access keys.

Is the AWS SDK for JavaScript free to use?

The SDK itself is open source under the Apache 2.0 license and costs nothing. You pay only for the AWS resources you manage with it, such as S3 storage or DynamoDB read/write capacity.

swap_horiz

Looking for AWS SDK for JavaScript alternatives? Compare top competitors ranked & scored

arrow_forward