Alchemize is a web app which lets you easily pretty-print or minify your source code. It's been a pet project of mine for a couple of years now, and it's really useful as a web developer.
Previously Alchemize was exclusively on the Chrome Web Store, and while it's still available to install as a Chrome app I'm excited to announce it's available online for even easier access.
I've gone to a bunch of trouble to fork and patched the libraries I'm using (a lot of them don't work out of the box) and included them in the NPM manifest so you can easily get to developing. If you're interested, check out the README for instructions.
If you're a web developer and haven't checked it out yet, you should absolutely bookmark the direct link: alchemizeapp.com/app