Add context awareness to your apps and frameworks by safely evaluating user-defined conditional expressions. Useful for evaluating expressions in config files, prompts, key bindings, completions, templates, and many other user cases.

PostgreSQL interface for Node.js

Strip comments from JSON. Lets you use comments in your JSON files!

Conditionally run different React hooks at runtime with a clean and safe API that follows the Rules of Hooks.

Format and prettify HTML email content

To be served (via conditional comments) when the user doesn't have an updated browser. Like browsehappy.com, but locally.

Types for testing TypeScript types.

Collaborative comments feature for CKEditor 5.

Scanner and parser for JSON with comments.

Decorator-based property validation for classes.

Error class for Octokit request errors

Single API for Web Crypto API and Crypto Subtle working in Node.js, Browsers and other runtimes

Create source bundles from ES Modules

HTTP server mocking and expectations library for Node.js

Extendable client for GitHub's REST & GraphQL APIs

Plate plugin for comments

JSON for humans and machines

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

Parses and serializes `.po` file content.

Strip comments and string literals from JavaScript code