Business

MailChimp – E-mail marketing tool with a free option to kick-start your communication with leads and clients

Color Scheme

Color Combos – Browse a variety of color combinations that may inspire your design
Color Scheme Designer – Generates color palettes based on 1-color
Colour Lovers – Community of people who share colors, palettes and patterns
Hex to RGB Converter – Use this tool to get the correct color code for your stylesheet

Copywriting

Readability Score – Flesch-Kincaid Readability Test, don’t overcomplicate your writing (70% or 7.5)
Spell Checker – Find typos on any page on your website using this tool

CSS

CSS Media Queries – Use within your custom CSS to make your website responsive
CSS Stats – Find out the most used CSS properties on your (or any) website
CSS Tricks – Popular Blog with CSS Tutorials on New Features and Common Issues
Skeleton Responsive CSS Framework – Use their column-based grid layout to quickly develop your HTML/CSS website
W3 Schools CSS Tutorials – Learn the Basics of CSS with Examples

Domain Registration

GoDaddy – Register and Manage Your Domains
GoDaddy Coupon Codes – Best Deals on Domain Registration

Fonts

1001 Free Fonts – Many Free Fonts to Download
FontSpring – Worry-Free Font Licensing for All Devices
Font Squirrel – Free & Premium Fonts
Google Fonts – Free Fonts to Download or Easily Embed on Your Website
MyFonts – Premium Font Licensing
TypeKit – Font Service that Allows You to Use Thousands of Fonts on Your Projects

Google Chrome Browser Add-Ons

ColorZilla – Pick Out Colors from a Website
Dimensions – Determine the Pixel Width or Height of Elements on a Website
Evernote Web Clipper – Clips Content from the Web into Your Evernote Account
Google Dictionary – Provides a Definition for Every Word You Double-Click to Highlight
LastPass – Password Manager that Generates and Stores Secure Passwords for All Your Website Accounts
Link Checker – Checks for Broken Links Automatically on Any Web Page
PageRank Checker – Determines Google PageRank (0 to 10) of Any Web Page
Wappalyzer – Find Out the Technology Behind Every Website You Visit
XMarks – Sync Your Bookmarks Between Browsers and Computers

HTML

HTML Sandbox – Split Window to Simultaneously Test Your HTML Code and View Results
W3 Schools HTML Tutorials – Learn the Basics of HTML with Examples

Images

New Old Stock – Vintage, royalty-free public archive photos
PicJumbo – Totally free photos for personal and commercial projects
Pixlr – Web-based photo editing service that is similar to Photoshop, with a free option
PlaceHold.it – Don’t have images just yet? Use this to generate placeholders
UnSplash – Use the free, high-resolution stock images for anything you want (seriously)

jQuery

jQuery – Javascript Library for Really Cool Animations and Easy-to-Install Features
jQuery API – Help for All Functions Included in the jQuery Library
jQuery UI – More Animations/Widgets Built on jQuery like Drag-n-Drop, Accordion Menu, Progress Bar, Date Picker from a Calendar

Measurement & Tracking

Google Analytics – Analyze your website traffic and make smarter decisions based on actual data
Optimizely – Easy A/B experiments on your website to test variations on colors, buttons and copy
BuiltWith Trends – See the current trends in web technologies that are being used by websites across the internet

Productivity & Efficiency

Dropbox – Sync Files Between All Your Devices
Evernote – Collect, Save and Search Your Notes Easily
FileZilla – Transfer Files from Your Computer to Web Host with FTP, Sync Settings via Dropbox
Klok – Track How Long You Spend on Projects, Sync Settings via Dropbox
Notepad++ – Powerful text editor that applies styles to different code such as HTML, CSS and Javascript

Q/A + Forums

Quora – Question and answer site with authority contributors like CEOs, entrepreneurs and other influential people
StackOverflow – Code-Centric Q/A Website

SEO

SerpFox – Easy-to-use tool to record your Google rankings over time for multiple keywords and phrases, plus export capability
Local Search Ranking Factors – Detailed post regarding the trends in local SEO by a round-up of experts

Social Media & Sharing

Buffer App – Schedule your social media posts in advanced
BuzzSumo – Find out exactly what content is being shared across all social networks
Embed.ly – Easily embed content from other sources or make it easy for your audience to share your posts
SumoMe – Website plugin that adds responsive social sharing buttons to every page of your website (plus other AMAZING features)
Topsy – Social media analytics tool

Testing Tools

301 Redirect Checker – Tool to ensure a URL redirects to the correct page
Google Page Speed Insights – Quick Test with Advice on How to Improve Your Website Speed
iPad Peek – Virtually Shows How Your Website Looks on an iPad & iPhone
MX Toolbox – Test the DNS/MX Settings of Your Domain and Web Hosting
Pingdom Page Speed – Test the Performance & Speed of Each Page on Your Website
Viewport Resizer – Responsive Web Design Bookmarklet that Allows You to Dynamically Resize Your Browser Window

Textures & Patterns

Pattern Cooler – Pick from Several Repeating Patterns and Customize Colors
Subtle Patterns – Repeating Patterns Great for Website Background
Texture King – Free Stock Textures Ranging from Grunge to Concrete and more
Transparent Textures – Test various transparent textures with the background color of your choice

Vectors & Graphics

All Free Download – Free vectors and other graphics
Vecteezy – Free vector art to use in your designs

Website Hosting

HostGator – My preferred web hosting company (I use reseller plan for multiple websites, you can use shared plan for single website).

WordPress

WordPress.org – Self-Hosted WordPress Installation
WordPress Documentation – Information on WordPress Theme Structure and Back-End Code
WordPress Plugins – Extend the Functionality of Your Website with Popular Plugins
WordPress Theme – Free & Responsive – A Modern and Professional Looking WordPress Theme at No Cost

WordPress Plugins – My Favorites

Advanced Automatic Updates – Automatically updates your WordPress core software, including plug-ins and themes
Ajax Event Calendar – Easy to use and slick calendar of events with links to Google Maps
Akismet – Comment spam blocker which is normally pre-installed with WordPress
BackupBuddy – Easy-to-use automatic backup software which works with services like Dropbox, Amazon S3 and others
Better WordPress Minify – Combine several CSS and Javascript files into one to save load time
Contact Form 7 – Build contact forms and surveys which can be added to any page on your website
Disqus – Advanced comment system which is used in place of the standard comments with WordPress
Google XML Sitemaps – Provide a list of every URL on your website so people can find you on Google
Growmap Anti Spambot – Adds a checkbox to the comment form for users to confirm they are human
iThemes Plugin Suite – Great pack of premium plugins that includes everything from BackupBuddy to photo galleries
Limit Login Attempts – As the name suggests, it increases security by blocking anyone that tries to login too many times
Responsive Lightbox – Add the image “lightbox” effect using a variety of different services
Search and Replace – Search and replace text within your WordPress database instead of manually updating several entries
SEO by Yoast – The best plugin to help your website content achieve #1 rankings in Google
Simple 301 Redirects – Redirect one URL to another
SumoMe – Website plugin that adds responsive social sharing buttons to every page of your website (plus other AMAZING features)
TablePress – Insert a database or table within one of your posts/pages
User Role Editor – Change what different user levels are allowed to update on your website
W3 Total Cache – Caching plugin that helps your website to load faster, best for VPS or dedicated hosting
WP Super Cache – Caching plugin that helps your website to load faster, best for shared hosting