Having a great collection of resources is important for every web designer because they help you become better designer. We tried to find some great fresh and high quality design freebies so you can add them in your resources collection and use them when the times come. Today, we chose to share with you a set of 100 free responsive line icons. These free line icons are perfect choice for your next web project, especially a responsive one. 100 icon concepts with 3 different size and style versions, each of them containing various amount of details. The icons are based on 3 different grid sizes: 16×16, 32×32 and 64×64. The line weight always stays the same, 2px, which gives them a super-consistent look. Enjoy it.