Twitter Threads - Twitter introduces a built-in Tweetstorm feature ⚡️
Word Counter - A simple, beautiful word and character counter
tweedium - Transform your tweetstorms to Medium posts
Wordcounter for Google Docs - A real-time word count and milestone markers in Google Docs.
Chirr App - Chirr App 💬 splits text into tweets and posts it as a thread
WordCounter.net - Count words, sentences, paragraphs etc.