[sauerbraten]

I thought this would look for words in your text that make for a good hashtag, e.g. converting "you only live once" to "#yolo", and make hashtags from nouns but not verbs and commonly used words. Unfortunately it seems to just put a "#" in front of every word, which (for me) isn't even worth it to go to that website, type my text, copy it over to twitter/instagram, paste it, then send it.

[dwaltrip]

I think the main point of the site is the list of hashtag suggestions below your freshly hashtag-prefxed content. Mildly interesting idea, however the suggestions I got with a few tests weren't that awe-inspiring.