Emotionr allows users to use a “slide bar” to indicate how they’re feeling. You create a free account; change the slide bar has many times as you want (it shows a face indicating your emotions); and then you can write about what you’re feeling and why. It’s then saved in an archive you can access.
I’ve created an account that I’ll have all my students use during a lesson on feelings. Students will label their entry with their name and write why they decided on that emotion at the time.
They’ll also be able to compare how they’re feeling with how people are feeling from different countries.