One of the simplest ways I’ve found for previewing all 350+ fonts currently installed on my machine is by using wordmark.it. All you have to do is type in the text you want to preview and then press the "load fonts" button. wordmark.it will then display your text using the fonts on your computer.
Sure, there are many other tools that do something similar, but many require you to install software. wordmark.it, on the other hand, works in the browser, so it doesn’t matter1 what operating system or device you’re using. It’s a handy tool that will help you choose fonts from your collection.
What tool do you use to preview your fonts? Share it with us in the comments!