Here is a list of 29 Must have free online SEO tools for webmasters (2017 Update).
Recommended - 29 Free online ping sites list
Siteprice.org
Online Website Worth & Domain Value Calculator
Statscrop.com
Free Professional Website Statistics Tool. A simple way to analyze your website.
Chkme.com
SEO Score Check and Free SEO Tools.
Quantcast.com
Traffic Estimator Tool - Quantcast helps you understand, reach and influence all your customers. Even the unexpected ones.
Statchest.com
Free Online Domain Value Calculator
Smallseotools.com
Generate Quality Backlinks With the Click of a Button
Privacypolicyonline.com
Create your Privacy Policy online instantly! Generate your own Privacy Policy that fills all of the requirements of the leading PPC and Affiliate sites such as Google Adsense, Commission Junction and the most popular websites used for site monetization.
CSS Minifier.com
Online CSS Minifier/Compressor. Free! Provides an API. Simple Quick and Fast.
Javascript Minifier
Online JavaScript Minifier/Compressor. Free! Provides an API. Simple Quick and Fast
Dedupelist.com
Remove duplicate lines from a list.
Keywordtool.io
750+ Google Keyword Suggestions For Free
Find Broken Links
Find Broken Links Online
robots.txt Generator
Online robots.txt Generator
The Wayback Machine
Wayback Machine The Internet Archive. Save your page.
Builtwith.com
Find out what websites are Built With.
Seedkeywords.com
What do real people search for?
Find valuable keywords, with a little help from your friends. Simply create a search scenario and ask your contacts to type in the keywords they would use to solve it.
Marie Haynes Blacklist Checker
Compare a url against Marie Haynes' blacklist. A tool from google penalty expart and algorythom analyst Marie Haynes.
Fastest Bulk URL Opener
Fastest Bulk URL Opener Tool
Embed Code Generator
Online Embed Code Generator
Similar Content Prospecting Tool
Similar Content Prospecting Tool (SkyRocket)
AdWords Robot
Analytics Referrer/Ghost Spam Blocker. Analytics Spam Killer makes it very easy to exclude spammy referrer domains from Google Analytics.
The hreflang Tags Generator Tool
Generate the hreflang tags for your multi-language or multi-country site easily and fast!
Map Broker
XML Sitemap Validator
Open SEO Stats (Chrome Extension)
Shows web rank and SEO stats of current web page, quick access to Geo IP Location, Whois, Alexa, backlinks, indexed pages and more.
Panguin Tool
Google Algorithm Update and Penalty Checker.
Barracuda Digital, the London based digital marketing agency, brings you a free tool to investigate if and how you’ve been impacted by Google’s algorithm changes.
Plug in SEO
Check Your Website for Issues
Plug in SEO gives you a single verdict: does your site have issues with search engine performance that will be worthwhile to fix? Once signed up (for free), Plug in SEO checks your site, determines the verdict and displays details.
Htaccess Redirects & Rewrite Generator
Simple Htaccess Redirects & Rewrite Generator
Varvy SEO Tool
Varvy SEO tool and Optimization guide
Bulk Keyword generator
Bulk Keyword Generator Online
Recommended - 60 High PR Free Classifieds Site List Worldwide
