JSPM

Detect native Uint8ClampedArray support.

detect container resizing

Scans a repository directory, searching for a changelog file

Check if the process is running as administrator on Windows

Analyze circular dependencies in your JavaScript/TypeScript projects with Rust.

Detect the appearance of an element in the browser DOM

Get the name of a project, from package.json, git config, or basename of the current working directory.

Checks that given package is installed globally or locally.

Wrapper component that detects element resize and passes new dimensions down the tree. Based on [element-resize-detector](https://github.com/wnr/element-resize-detector)

JavaScript module detecting bots/crawlers/spiders via user-agent

Detect native generator function support.

Detect native Int8Array support.

Instantly detect support for WEBP images in the browser in 0.2KB

ES6 and ES7 feature detection.

Simple and Performant Language detection library (pure JS and zero dependencies)

Check if the process is running with elevated privileges

XML detection plugin for file-type

Check if a file path is an image

Helpers for handling mobile devices

check if an AST node is a call to require()

check if an AST node is a call to require()

Get the language associated with a file extension or the extensions associated with a language using the data from GitHub's [Linguist YAML file](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml)

Detects clicks outside React components, and also handles keypresses.

Language detection for Javascript. Based on the CLD2 (Compact Language Detector) library from Google. Highly optimized for space and speed. Runs about 10x faster than other libraries. Detects over 160 languages. Full test coverage. Runs on Linux, OS X, an

Checks the filesystem for potential license files and attempts to detect what they are

Offline and Online components for React

Checks if the given value is an array or array-like object.

Detect the MIME type of a Buffer, Uint8Array, ArrayBuffer, ReadableStream, file path and file name, with async method.

Count syllables in English words

Detect native Symbol.iterator support.

Arcjet runtime detection

Check if a JavaScript environment has a DOM

It's FuckAdBlock with a minimalist API.

Check whether a file can be executed

Check if a file path is a video file

Provides utilities to check if ad block is enabled on a page via both a React hook and a wrapper component.

Detect native function name support.

A Svelte action that monitors an element enters or leaves the viewport or a parent element. Performant and efficient thanks to using Intersection Observer under the hood.

Check if a String/Buffer is TTF

Get document, if there’s DOM.

Check if an Array is sorted

Regex for matching dot-directories, like `.git/`

Check if something is a Node.js stream. This is a fork of sindresorhus/is-stream, but with CommonJS support.

Executes a command when a change is detected in specified files. Not an active file watcher.

Check if a String/Buffer/ArrayBuffer is OTF

Utility to check if internet is connected or not

🃏 Minimalistic isomorphic library for detection of platform, runtime, APIs and more.

Detect whether the code is running in TS Node

check browser and browser's version from userAgent

Check if a Buffer is a STUN message.

Detects if a file is binary based on its content

Get the version of the package.json file found in the given directory or in one of its parents.

Check if a Buffer/Uint8Array is WOFF

detect in-app browsers

Detects active internet connection, and API server status in Angular application.

Detect if the network is up (do we have connectivity?)

JavaScript module to check if user agent to return the device and browser.

Check if a Buffer/Uint8Array is a FLAC file.

Check if a Buffer/Uint8Array is EOT

find and identify a cycle in a directed graph

Check if a buffer/Uint8Array is a woff2 file

Detect the language of text

Detect Node.JS (as opposite to browser environment) (reliable)

Detect character encoding using ICU

Lint HTML and template source files for hardcoded (untranslated) strings

Quickly detect the EOL used in a string.

Checks if the given value is a valid array-like index.

Regular expression matching for email addresses. Maintained, configurable, more accurate, and browser-friendly alternative to email-regex. Works in Node v14+ and browsers. Made for Spam Scanner and Forward Email.

Detect file type by signature

Check if a Buffer/Uint8Array is a MP3 file.

Check if a Buffer/Uint8Array is a m4a file.

Check if a Buffer/Uint8Array is a wav file.

Detect if DevTools is open and its orientation

Detect structural similarities in your code

Determine whether an element is completely within the browser viewport

Check if a Buffer/Uint8Array is an OGG file.

Discover the variable names chosen for each of a file's top-level required modules

Read a glob of files, dynamically choosing the reader or requiring the files based on the file extension.

detect available port

A simple, performant, and cross-browser hook for handling scroll in your next react app.

Detect browser language

Detect native DataView support.

Glin-Profanity is a lightweight and efficient npm package designed to detect and filter profane language in text inputs across multiple languages. Whether you’re building a chat application, a comment section, or any platform where user-generated content

Detect native BigInt support.

JavaScript/TypeScript filter and checker for bad words aka profanity

Detect when an element is ready in the DOM

A small and simple utility package that can validate any kind of image. It can detect corrupt files, or invalid image urls

Detect image dimensions via request.

Fast and native browser detection on Windows

Detect native ArrayBuffer support.

Get details about the current Continuous Integration environment

Regular expression for matching words in a string. Support for english, CJK and Cyrillic.

Library to check unused resolvers at Ovrsea

Detect the character encoding using Google’s compact_enc_det library

Converts between RSA key formats, detecting input format (PEM, DER, PKCS1, PKCS8). No OpenSSL needed.

Detect the current chrome version in the browser

Adblock detector

Regular expresson for matching dotfiles.

Check if a Buffer/Uint8Array is a APNG (Animated PNG) image

Simple module for getting the current mouse position in element or window.

Detect copy-pasted and structurally similar code. Supports ES2020 standard (and most proposed features), TS and TSX files. Using Babel 8's parser.

Detects where the current browser extension code is being run. Compatible with Firefox, Chrome and derivates.

migration tool for sequelize & typescript users

A pitch-detection library for node and the browser

A browser detection package that uses feature detection instead of user agent

JS Library to detect browser, os and device based on the UserAgent String, forked by John Carmichael for ease of use.

Match the words in a string. Support for english, CJK and Cyrillic.

Feature detection in the browser before loading polyfill using services like polyfill.io

Detect unused CSS in angular components

A React component that renders its children if an ad blocker is detected

The React hook to detect if the device is mobile or desktop.

Checks if internet is available using http2, node v8.4.0+ only

The simplest way for detecting HTML content.

Checks if the browser supports WebP. Cheaply and synchronously.

Detect the programming language of any file.

Offline and Online components for Vue

Checks if the file path is zip file. It does not read the complete file nor it depends upon file extension

Check if a Buffer/Uint8Array is a 7ZIP file

Detect if Mocha is running

Check if Node script is running on AppVeyor

A microlibrary to detect whether Node.js runs inside a Docker container or not

Check whether or not a directory and its descendants are valid

Detect support for emoji character sets.

Detects whether browser has an active internet connection or not in Angular application.

Detect the license of node.js projects and their dependencies

Check if a string is XML

Scrypted CoreML Object Detection

detects node runtime

4-directional swipe detection for react-native.

Device resolution detection module

Check if browser is Safari

Detect environment (native, server side, web, etc.)

Which GitHub page are you on? Is it an issue? Is it a list? Perfect for your WebExtension or userscript.

Check if a Buffer/Uint8Array is a RAR file

Utility methods to detect runtimes and load modules dynamically.

Identify the network your users are using!

React component to detect browser

Check if your code is running as an npm script

Detectizr is a Modernizr extension to detect device, browser, operating system and screen.

Fork of cld with pre-built binaries for OS X and Linux. Language detection for Javascript. Based on the CLD2 (Compact Language Detector) library from Google. Highly optimized for space and speed. Runs about 10x faster than other libraries. Detects over 16

A path of the currently executed npm CLI

Convert a mime type to a file extension. It works only with popular mime types and it's super lightweight.

Check if your code is running on Heroku

detect the properties in one lib

Scrypted Video Analysis Plugin. Installed alongside a detection service like OpenCV or TensorFlow.

Convert CSS color strings to RGBA and check whether they are light or dark

Automatically moderate your content with Moderation API

Hunt down `.only`s before it's too late.

Check if a given string is css compatible color value

Check whether a string has any emoji

Superset of RESPONSIVE DIRECTIVES to show or hide items according to the size of the device screen and another features in Angular 9

Strictly and correctly checks if value is a nodejs stream.

@wora NetInfo

Check if a value is a Fetch network error

Detect if a Node.js process is in the debug mode.

A CommonJS port from the ESM file-type package. Now fixed to not have 'tarHeaderChecksumMatches' error!

Detect the current iOS version in the browser

Multi Languages Detection for Text-Mining and Natural Language Processing - True ITK - Open Source

Scrypted OpenVINO Object Detection

Check if a value is an error constructor

Detects Dependencies In The Source File.

Detect if a visitor is coming through a webview or a native browser using user-agent.

react network detection hooks

Get the users' most preferred locale/language from your app's available translations with zero dependencies

Detect if a string contains traditional or simplified Chinese characters.

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

Modified version of Nick Drewe's tc or sc checker.

Check if a Buffer/Uint8Array is a WebP image

detect container resizing

An *Ackchyually* browser compatible file-type hacky replacement of the `file-type` package. Forked from https://github.com/sindresorhus/file-type

Check if a `package-lock.json` is present in the working directory

Check if a Buffer/Uint8Array is a 7ZIP file

CLI to detect the language of text

Check if pnpm is available.

Detects browser and React Native source-code bundlers

It's FuckAdBlock with a minimalist API.

Check if a number is a HTTP success status code

Detect lockfiles in the working directory

Detect whether a terminal or browser supports ansi colors.

Synchronously check if a file is a symbolic link

Check if a project is using pnpm.

A module to verify if there's an active internet connection with Node.js

Detect raspberry pi revision

Check if a Buffer/Uint8Array is a TIFF image

Detect the file type of a Buffer/Uint8Array in ES5 (can be used for browser and create-react-app

Report browser settings like whatsmybrowser.org.

Check Internet Availability for your vue app

Superset of RESPONSIVE DIRECTIVES to show or hide items according to the size of the device screen and another features in Angular 2

Check if a string is an IP address. This is a fork of sindresorhus/is-ip, but with CommonJS support.

A device detector plugin of Vue 3

Check if a Buffer/Uint8Array is a JPEG XR image

Call a callback when an image has loaded - adapted from desandro/imagesloaded

Check if a Buffer/Uint8Array is a BMP image

Check if a Buffer/Uint8Array is a PSD image

Check if a filepath has extension(s)

Platform detection: NodeJS? React? ReactNative? Expo? etc.

A small utility to detect screen (viewport) size (resolution height and width) and listener to resize event with additional features

Server side mrz (Machine Readable Zone) scanner.

Hijacks NodeJS Stream and emits events when newline(s) written to the output.

Detect the OS from a User-Agent string.

Javascript detect retina screen (javascript detect device pixel ratio / density)

@wora Detect Network

Detect the width and height of images in a stream

Make detecting user's OS less annoying

React adblock detector

Detect whether you're running on node.js or io.js

ecmascript version detector

Magic number detector for javascript

Check if JPEG images are progressive

Check if your code is running on Travis

Check if `npm-shrinkwrap.json` is present in the working directory

检测设备类型，根据设备类型渲染内容

Classify GPU's based on their benchmark score in order to provide an adaptive experience.

is-real-image is a lightweight and efficient Node.js package that allows you to verify if a file is a real image based on its extension, signature (magic number), or both. This package ensures that the provided image file is valid by checking the file's e

Check if a Buffer/Uint8Array is a PDF file.

Check if the current web browser has any ad blockers (AdBlock, Adblock Plus, uBlock, AdGuard, ...) enabled.

Cordova/Phonegap plugin to determine if current device is a tablet.

JS library that detects new DOM nodes using CSS selectors

Detect the file type of a file, stream, or data

Scrypted ONNX Object Detection

Check if the internet connection is up. This is a fork of sindresorhus/is-online, but with CommonJS support.

One-file interface to detect whether your content script have loaded.

A touchevent swipe detection utility for JavaScript applications.

Detects the BPM of a song or audio sample

Scrypted OpenCV Motion Detection Service.

Check if a Buffer is a RTP/RTCP message.

Detect device type and render your component according to it

> Detect the file type of a base64 The file type is detected by checking the [magic number] of the base64.

Superset of RESPONSIVE DIRECTIVES to show or hide items according to the size of the device screen and another features in Angular 15

Detect device type and render content based on device type

Uses AST to extract AMD modules, their parts and an optimized output without unused dependencies while keeping the original format.

Tiny developer-friendly JS library that provides information about host browser

React componant that renders based on device

Is Env - Environment Detecter

An operator for mouse and keyboard in nodejs.

Live request detection for Mocha

Is it a touchable device?

A React Hook Library for Detecting Fonts

ESLint Plugin to forbid rendering hardcoded strings in the JSX tree

Handy Angular package for screen detecting

ECMAScript feature and API detection

Get the monitor refresh rate.

Check if a filepath is a video file in a web browser

detects support for rendering PDF in browser

0D/1D/2D/3D/4D tensors with extensible polymorphic operations and customizable storage

Detect which font your system has cherry-picked from font-family.

Detect if the browser supports the pointer events api

Detect if WebGL is enabled in the current environment.

Detect whether $PAGER supports color

Detects active internet connection in Angular application.