Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.
Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
5Tweets.com - Type a long tweet and 5Tweets will rewrite it into multiple tweets with a tweet count.
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.