npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details


  • User packages



Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner




A postMessage polyfill for electron webview





A postMessage polyfill for electron webview. Useful if you want to reuse existing postMessage libraries to talk with code inside an electron webview (e.g. secret-door).


Inside of webview

import installPostMessage from 'electronic-post-message'


// That's it!! Use postMessage as usual
window.addEventListener('message', function (msg) {
  if (msg.source === window.parent) {
    console.log( // logs 'pong'

In electron top level window

import installPostMessage from 'electronic-post-message'

var proxyIframe = installPostMessage({
  webview: document.getElementById('#some-webview')

// That's it!! Use postMessage as usual with proxyIframe.contentWindow as target
window.addEventListener('message', function (msg) {
  if (msg.source === proxyIframe.contentWindow) {
    console.log( // logs 'ping'


  • Why is proxyIframe needed? Because an electron webview is not a Window or MessagePort. Which means we can't create an instance of MessageEvent with source set to webview since the browser throws a The optional 'source' property is neither a Window nor MessagePort. exception.