Node.js bindings for the FSRS Optimizer implemented in Rust and compiled to WASI.

A small library to detect which features of WebAssembly are supported in your current browser.

Component for quiz recapitulation in education.

Lightweight browser detector

AI-writing-style rulepack for the WritingLint grammar linter: authorable rules over the dependency graph, plus a stylometric document scorer.

Detect the snapshot key to be compare with using Git hash.

Module type detection and loading for CJS and ESM compatibility

Node.js utilities and TypeScript definitions for `package.json` and `tsconfig.json`

Formats your code with whatever formatter your project is already using. 🧼

Detect and validate file types by their signatures (✨magic numbers✨)

Spaced Repetition Library

🌈Easily set your terminal text color & styles.

JavaScript environment detection for browser and Node

File System Access API with legacy fallback in the browser.

Parse HTTP headers to detect the device type, model, operating system, browser, and crawler information

Detect if a device is mouse only, touch only, or hybrid

A Barcode Detection API polyfill that uses ZXing webassembly under the hood

Gender detection from first name

> Percy CLI sub-command that diagnoses network, authentication, configuration, and CI readiness for running Percy builds.

CSS vendor prefix detection and property feature testing.