SnapCrab is described as 'Photo capture software that can capture any part of your screen. Files are saved in PNG format. Capture the whole screen, specified windows or areas, or wherever you like. With SnapCrab you can directly post captured images to Twitter, or save them to Evernote' and is a screenshot capture tool in the photos & graphics category. There are more than 50 alternatives to SnapCrab for a variety of platforms, including Windows, Mac, Web-based, Linux and Google Chrome apps. The best SnapCrab alternative is ShareX, which is both free and Open Source. Other great apps like SnapCrab are Greenshot, Snipping Tool, Snagit and PicPick.