Screen Guru - Take clean screenshots of any website
Screenshot Machine - Screenshot machine is an online website capturing service. Creates a screenshot or thumbnail of any online web page in couple of seconds for free.
Screenzy - A simple screenshot beautifier
URL2PNG - Screenshots as a Service. Capture snapshots of any website, right in your app, quickly and reliably.
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
ApiFlash - ApiFlash is a powerful serverless screenshot API built with Chromium and AWS Lambda. It can easily scale to millions of screenshots per day and has an ever growing number of satisfied big clients.