Max140

On twitter dot com, truncate tweets of > 140 characters

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Max140
// @version      0.2
// @description  On twitter dot com, truncate tweets of > 140 characters
// @author       Kevin Shay
// @match        http://tampermonkey.net/index.php?version=4.4&ext=dhdg&updated=true
// @grant        none
// @require https://code.jquery.com/jquery-2.1.4.min.js
// @include      https://twitter.com/*
// @namespace https://greasyfork.org/users/154233
// ==/UserScript==

(function() {
    'use strict';

    window.setTimeout(function () {
        $('.js-tweet-text').each(function () {
            var tweet = $(this).clone();
            // Emoji
            tweet.find('img').replaceWith('X');
            // External links don't count but hashtags do
            tweet.find('a').not('.twitter-hashtag').remove();
            var text = tweet.text();
            if (text.length > 140) {
                var extra = ' <span style="color:red;font-weight:bold;">+' + (text.length - 140) + '</span>';
                $(this).replaceWith($(this).text().substring(0, 140) + extra);
            }
        });
    }, 2000);
})();