Twitter supports GIFs (and more recently: longer/bigger GIFs!), yet they render them as MP4 files. So how to get the original GIF? Enter TWEET2GIF:
Ever wanted to download that gif that you saw on Twitter? Maybe share it on Facebook or other social networks? You’re at the right place!
Just paste in the URL of a tweet and you’re done 🙂
TWEET2GIF — Convert tweets into real GIF or MP4 files →
UPDATE 2018.02.28 Updated the URL to a Heroku URL since the tweet2gif.com domain got snatched.