https://p2r3.github.io/convert/
Truly universal online file converter.
Many online file conversion tools are boring and insecure. They only allow conversion between two formats in the same medium (images to images, videos to videos, etc.), and they require that you upload your files to some server.
This is not just terrible for privacy, it’s also incredibly lame. What if you really need to convert an AVI video to a PDF document? Try to find an online tool for that, I dare you.
Convert.to.it aims to be a tool that “just works”. You’re almost guaranteed to get an output – perhaps not always the one you expected, but it’ll try its best to not leave you hanging.
For a semi-technical overview of this tool, check out the video: https://youtu.be/btUbcsTbVA8