Detect Packages

Check if a Buffer/Uint8Array is EPUB

Check whether operating system CPU architecture is 64-bit or 32-bit (Supports browsers)

Check if a list of hosts servers are all recheable.

Check if a Buffer/Uint8Array is a MP4 video

Check if a file mode integer represents symbolic link

Zawgyi Detector

A jQuery plugin for detecting credit card types.

Inject JS to the DOM to find vulnerable JavaScript libraries

jQuery/Zepto plugin for detecting HTML elements in view or out of view.

Detect if the current system is chromeOS

Check if a Buffer/Uint8Array is a EXE file

⛔️ [DEPRECATED] Quickly determine if code is executing on the client or on the server with SSR/SSG

Check if you're running in Hyper

Check if a Buffer/Uint8Array is a SWF file

Check if a Buffer/Uint8Array is an OPUS audio file

Check if your code is running in a JXA environment

Check if JPEG images are progressive

Check if hostnames are reachable

Handle http request from crawler (Something like Googlebot)

Get the maximum permitted length of a path of a Unix domain socket