Tweetshrink takes up the responsibility to shorten your tweets within the 140 character limit. It does so by replacing common phrases and words with shorter representations.

Tweetshrink is a service aimed at Twitter users, helping shave those few extra letters off a tweet that has exceeded the 140 character maximum. The goal was really to help users who clip that max allowance without having to actively edit their tweet or changing the meaning or basic readability of the original message.

The first application to use the Tweetshrink API is the extremely popular TweetDeck application. A bookmarklet is also available. It can be dragged and dropped onto your browser's toolbar. The tweets in your Twitter web interface can be shortened using the bookmarklet.

Tweetshrink cuts the FAT OFF YOUR TWEETS! - ODEO

Follow Tweetshrink.

140it is a service which reduces your tweets to less than 140 characters. 140it is useful for those people who find it difficult to keep their tweets within the 140 character limit. Although, most technophiles have accomodated themselves to the slangs of Twitter, there are many normal people out there who find it difficult. Voila! 140it is there to help them.

140it converts words such as are to 'r' to keep it within the 140 character limit. "I am" gets converted to "Im". Such common substitutions are made. It uses bit.ly to reduce the length of URLs. If your tweet contains a company name, then it is swapped to its corresponding StockTwit symbol. The algorithm works very fine. And the message is conveyed to the user's followers without any lack of coherence.

140it is similar to the working of Tweetshrink, though in Tweetshrink one has to visit their homepage to shorten their tweets. 140it removes that particular burden off the user by giving the user a choice to place its button the user's browser thus making it simple.

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