Headliner is an app that will take your audio files such as podcasts and make them into a video. Some places, such as YouTube, will only take videos, so this is a way to make a video out of your podcast to share on YouTube or other social media.
The site accepts Google & logins along with the standard email address sign up. You can create 5 watermarked videos a month at the free tier. The free account will also transcribe up to ten minutes of your audio. These limitations are removed with a paid account, which starts at $7.99/month (billed yearly), but students would be more than satisfied with the free tier.