casl-aurelia
An isomorphic JavaScript authorization library that restricts user access to resources with incremental adoption and scalability.
What is casl-aurelia?
CASL is an isomorphic authorization library for JavaScript applications that manages what resources a user can access. It enables developers to define and enforce permissions consistently across frontend components, backend APIs, and database queries, supporting both simple claim-based and complex attribute-based authorization models. The library is designed to be incrementally adoptable, allowing developers to start with simple rules and scale to complex authorization as application needs grow.
Full-stack JavaScript developers building applications that require consistent authorization logic across the frontend and backend, particularly those using frameworks like React, Vue, Angular, or Aurelia, and ORMs like Mongoose or Prisma.
Developers choose CASL for its isomorphic nature, allowing seamless permission sharing between UI and API layers, and its incremental adoptability that scales from simple to complex authorization without rewriting logic. Its small core size (6KB minified and gzipped), TypeScript support, and declarative rule serialization provide a flexible and type-safe alternative to manual authorization checks.
Overview
CASL is an isomorphic authorization JavaScript library which restricts what resources a given user is allowed to access
Use Cases
Best For
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