I have found 20 free and versatile icon packs to add to your toolkit. Being a designer means you can never have enough icons, so many different styles are available it can be mind-numbing searching for the perfect set.
Get not one, but two amazing FREE icon packs focused around an office theme. Things like monitors, envelopes, address books, pens, paper and more. Enjoy!
Free Outline Icons Set (95 Icons)
"Stylistica" icon set, by DryIcons. Comes with a Free, Commercial and Extended License.
Simple Line Icons Webfont
Simple Line Icons (Free PSD, Webfont) by GraphicBurger , via Behance
Ocean Packages - Free icon sets by Guillaume Kurkdjian, via Behance (personal use)
Vector and webfont Social Media icons for free!
154 free developer icon set in PNG and PSD format
Hotel, travel and tourism icons for Hotel sites, travel sites, booking sites…