Favicon Checker - Easily compare your favicons on all major web browsers.
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.
Faviconographer - Favicons for your Safari Tabs
URL2PNG - Screenshots as a Service. Capture snapshots of any website, right in your app, quickly and reliably.
Favvy for Figma - Export production ready favicons from Figma, in seconds.
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.