Converter365.com is a universal online tool for the conversion of a multitude of different formats that is also completely free of charge. To find the format you need, you can search nine categories Image, Vector, Video, Audio, Documents, Archive, Spreadsheet, Presentation, and E-Book.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
File Converter - Convert & compress everything in 2 clicks!
CraftMyPDF - Auto-generate PDFs with a drag&drop editor and a simple API
Smallpdf - PDF document management and conversion suite
Magicul.io - Convert between Adobe XD, Figma, PDF, Illustrator, Sketch and more with 1 click
CR2toGPGconverter - If you need to open, edit or print the images from your Canon DSLR that are in CR2 format, you’ll have to convert them in JPG or some more accessible image format.