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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.

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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 🙏

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4Catalyzer babel preset






A configurable, batteries included, babel preset for libraries and web apps.

Includes the following presets and plugins:


yarn add @4c/babel-preset -D


Without options:

  "presets": ["@4c"]

With options;

  "presets": [
        "target": "web-app",
        "modules": false,
        "intl": { "prefix" "@mylib" },


In addition to the options below, all preset-env are accepted to be overridden when the defaults aren't sufficient. By default the preset picks a set of known safe combinations tailored to the chosen target.


'web' | 'web-app' | 'node', defaults to 'web'

The overall build environment target. Used to set some smart presets as well as configure the preset-env targets.


  • targets set to node 10 in production and current in development
  • modules set to commonjs
  • intl is disabled


  • targets uses the browserlist config is (determined by .browserslistrc, etc) if available or defaults to ['ie >= 11', 'last 2 Edge versions', 'last 4 Chrome versions', 'last 4 Firefox versions', 'last 2 Safari versions'];


  • uses the same targets as web
  • defaults modules to false
  • defaults runtime to true


boolean, defaults to false

Uses a more development friendly set of targets as well as toggles development plugins for react (see. When true the current version of node for node targets and esmodules for web targets. You can read more here.


"commonjs' | false, defaults to false except when target is 'web-app' and 'commonjs' otherwise

The preset-env modules option. controls the output module format


Turns on the babel runtime transform.


boolean | { prefix: string, messagesDir: string }

Configures the react-intl babel plugin to extract and output localized strings prefixed by the package name or provided prefix