99webtools offers various Free Web and SEO tools to develop and analyze a website.
Find who's not following me back on twitter
Find website backlinks with their pagerank
online xml sitemap generator with limit upto 1000 urls
This tool helps to find bad/dead links of webpage
Generate favicon from PNG, GIF, JPG or JPEG image
Live jQuery based regular expression testing tool
web interference of YUI Compressor to compress JS and CSS
Bulk Page Authority and Domain Authority Checker
Check Semrush rank, keywords, traffic, and cost on website
check google pagerank using php script
get user geolocation using w3c geolocation API
php script to extract particular data from other website.
php script to generate captcha image and verify response
php code to read web feed using SimplePie
php code to access movie information from imdb using third-party API
Php script to get share count from Google plus, Twitter, Facebook, Linkedin, Stumbleupon, Delicious, Pinterest
Standalone php class to find whois information of domain or IP.