Google has had a collection of free fonts for a while. Recently, the site for these fonts got an update. Now it’s easier than ever to browse through the fonts and preview the ones you need before you download them.
Link: Google Fonts
The site shows you preview sentences rendered in the various fonts included in Google’s 800+ font families. You can enter your own text so you can see what your designs look like specifically. This is similar to how font site Dafont works. You can also tweak settings like font size and which font out of the family you want to render the text in. Best of all, the entire font collection is free to use, so the next time you need a font for your project, check it out.