# The Big Box of HTML ## Testing Tools - [.resizr](http://resizr.co/) - Responsive website testing tool - [webfont-test](http://webfont-test.com/) - Compare up to 3 fonts at once - [Google Fonts on Github](https://github.com/google/fonts) - A repository that contains the fonts available on [Google Fonts](https://www.google.com/fonts). ## Packaging Tools - [NW.js](http://nwjs.io/) - Previously known as `node-webkit`, this tool lets you package your HTML / CSS / JS app into a bundle (native for your target desktop platform) with Blink & Node.JS. - [Electron](http://electron.atom.io/) - An alternative to the above. Looks to be smaller, but I don't really know how it works. ## Other - [SRI Hash Generator](https://srihash.org/) - Compute the SRI hash for the resource at a given url. See [cloudflare's blog post](https://blog.cloudflare.com/an-introduction-to-javascript-based-ddos/) (Scroll to the section on "Subresource Integrity") for more information.