This website is a tool for finding your Twitter friends in the federated Mastodon network. As long as your friends have signed on here with both accounts, you can find them.
You are not signed in
So far, 1031 users signed in with Twitter, and 704 with Mastodon. Are your friends or followers among them?
This website is run by Gargron@mastodon.social / @Gargron. Source code