Capture by Techulus - The ultimate toolkit for converting HTML to image & PDF. Pay only for what you need.No Subscription.
Signaturely - Super simple eSignature software
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.
Woleet Sign - eSignatures secured by Bitcoin
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.
HTMLCSS to Image API - Convert HTML to an image (jpg, png, webp). Renders images exactly like Google Chrome. Works with PHP, JavaScript, Ruby, .NET and more.