Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
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.
Yout - YouTube to Mp3 Converter
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
You-Get - Command-line utility to download media contents from the web
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request