PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
Website Starter Kit from Glitch - Learn HTML, JS, CSS & Node.js w/ free videos & live code
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
Awesome Ruby - The essential Ruby to build modern Apps and Web Apps
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Enlight - Performance and Error Monitoring. We keep an eye on your applications and notify you about performance issues and errors.