Search engine optimization or SEO is one of the easiest and most effective ways to boost the rankings of a website and increase its visibility. However, after Google Penguin update and Google panda update it has changed the way search engine optimization was practiced.

To assist you in developing your website so that it receives much more web traffic in the competitive online market place, we have compiled a list of free SEO tools.

Depending upon the kind of website you are running, you may find some tools are more beneficial than others. By defining your goals it can help you narrow down which ones you should try and which one to be ditched.

Analysis and SEO Audit Tools

These tools will help you analyze and measure the ranking potential of your web pages so that you can make any changes to make it rank even better.

SEO Site Checkup: Provides different sets of the tools right at your fingertips, with one quick click, you can see how your site is doing. The dashboard offers instant access to reports, monitors, and analysis tools. Analise site load speed, website monitoring, sitemap generator, broken link checker, white label SEO reports, or a quick way to perform a full SEO checkup.

Analyse SEO: It’s a French website but easy to use, just enter your website in the given box; you will get a report in English. This free tool allows you to get important information on the content of your web page: title tag, description tag, word density, time and page load speed, and many others.

Anchor Text Over Optimization Report: This tool is used to identify your anchor text diversity and highlight those areas where you are at risk for anchor text over optimization.

IIS SEO Toolkit: The IIS SEO Toolkit includes the Site Analysis module, the Robots Exclusion module, and the Sitemaps and Site Indexes module, which let you perform detailed analysis and offer recommendations and editing tools for managing your Robots and Sitemaps files.

URL Auditor: The URL Auditor analyzes your landing page URLs and quickly determines those that are working and those that are not.

Meta Tag Analyzer: SEO tool to help webmasters analyze their web pages and Meta Tags. This search engine optimization tool analyze not only the Meta Tags but try to use the same spider technology as the search engines spiders them self.

nTopic: nTopic takes keywords you provide, builds a “perfectly relevant” document, and then compares your content to that document. It then compares your relevancy against the probability that any random 2 documents from our cohort will have greater relevancy to one another than the ideal document to yours.

SEOptimer: Seoptimer is everyday use, handy tool for webmaster and SEO expert. Seoptimer checks over 20 major on-page SEO factors for any page on the website. With this tool you can easily optimize and make necessary audits.

URI Valet: The URI Valet is a culmination of tools that can be used on a regular basis when performing technical audits, site reviews and overall document quality control.

Xenu’s Link Sleuth: Xenu’s Link Sleuth (TM) checks Web sites for broken links. Link verification is done on “normal” links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets. It displays a continuously updated list of URLs which you can sort by different criteria. A report can be produced at any time.

Geo Sitemap Generator: Generate a KML file to submit to Google and Bing if you have multiple locations.  You can also generate HTML markup by filling out form with company info.

Yext: See how your business appears across the internet and find discrepancies in local citations.

GTmetrix: GTmetrix can help you develop a faster, more efficient, and all-around improved website experience for your users.

Web Page Test: You can run simple tests or perform advanced testing including multi-step transactions, video capture, content blocking and much more.

BROWSEO: BROWSEO is a web app that allows you to view any webpage without distractions caused by styles. It also highlights parts of a page that are relevant for SEO.

SEO Cloaking Checker: Checks a web page in order to see whether cloaking is being employed, either intentionally or unintentionally.

Google SERP Snippet Optimization Tool: This tool simulates Google’s search engine results pages (SERPs). Just enter the title, meta description, and URL of your web page, and this tool will generate a virtual search result listing based on your input.

Bulk HTTP Header Response Checker & Comparison Tool: This tool returns the HTTP response code for a whole list of URLs, and includes which URL they are redirected to where pertinent. You can optionally fetch each URL twice, with varying user agents and compare them. This can help turn up cloaking issues, such as those page redirecting for GoogleBot.

Web Sitemap Generators (Wiki): Links to tools that generate or maintain files in the XML Sitemaps format, an open standard defined on sitemaps.org and supported by the search engines such as Ask, Google, Microsoft Live Search and Yahoo!.

XML Sitemap Validator: A tool which will validate your xml sitemap and optionally ping Google to inform them of their location.

Robots.txt Checker: This robots.txt checker is a “validator” that analyzes the syntax of a robots.txt file to see if its format is valid as established by Robot Exclusion Standard or if it contains errors.

Meta Tag Extractor: Enter a list of URLs and this tool will return the title tag, keywords and description for them.

Site Condor: Extract, analyze, and visualize on-page elements and structured data.

Keyword Research SEO Tools

Keyword research is one of the most important, valuable, and high return activities in the search marketing field. You need to Use Keyword Research tool to get a complete list of related keywords and all the necessary statistics so that you can focus on the correct keywords and increase your website organic traffic.

Google AdWords Keyword Planner: You can search for keyword and ad group ideas, get historical statistics, see how a list of keywords might perform and even create a new keyword list by multiplying several lists of keywords together.

Keyword Eye: Find great keywords quickly and discover what keywords your competitors have a presence on within organic and paid search.

Long Tail Pro: If you are looking for a fast and easy way to find long tail keywords that you should be targeting on your website, then this ultimate tool is a must have. Free 10-day Trial!

Ubersuggest: Get thousands keywords ideas in a minute with this amazing keyword suggestion tool.

Wordstream Free Keyword Tools: WordStream’s free keyword tools are an integrated, actionable suite designed to help search marketers with keyword suggestion, keyword grouping, keyword analysis, long-tail keyword research and negative keyword discovery.

SEOgadget for Excel: Unlock the incredible capabilities of tool provider data from Majestic SEO, Moz and Grepwords within Excel. Use Excel plugin and AdWords API to pull keyword research data.

Soovle: Search suggestions and completions from the top providers on the internet.  Easy to use, fast and efficient.  Hit the right arrow to change engines, and use your arrow keys to search without all the typing.

Google Trends: Explore Google trending search topics with Google Trends.

Search Latte: Build Google searches in any combination of Google supported top level domain, country and language. A tool for international SEOs.

Keyword Lizar: Keyword Lizard is a FREE AdWords keyword tool that explodes your keyword lists by creating every possible permutation combination of keywords.

Merge Words: Use the Merge Words tool to combine sets of words automatically. For PPC, domain registrations, etc

Keyword Niche Finder: Free tool to assist in content topic selection and for finding valuable, previously undiscovered long-tail keyword variations to help increase traffic from search engines.

Keyword Expander: Filter out keywords from a list.

Bad Keyword & Number Stripper: Clean up your keyword lists by removing bad words and phrases, and remove unwanted numbers from your keywords using our keyword list cleaning tool.

LDA Content Optimizer: This tool determines your LDA relevancy score for a particular URL and keyword. The tool then spiders your page and top ranking pages for that keyword to determine Colocated terms that you have not included in your page. The tool then re-checks your LDA score if you were to include those keywords on your page to determine the potential increase in relevancy.

Competitive Analysis SEO Tools

Competitive analysis in marketing and strategic management is an assessment of the strengths and weaknesses of current and potential competitors. Identifying your competitors and evaluating their strategies can help you determine their strengths and weaknesses relative to those of your own product or service.

With these tools, you can lookup a list of all the pages linking to a URL or domain, and some include detailed information about each link’s anchor text, dofollow or nofollow links, authority for the linking page, and in some cases the ability to group, sort, search, and filter the results.

Built With: Web technology information profiler tool. Find out what a website is built with.

Compete: Optimize your digital marketing, business development, media planning and competitive strategy with Compete s online consumer behavior insights.

SEMrush: Shows you which keywords that your websites or your competitor website rank for and the number of searches done for those keywords per month.

Similar Web: Compare website traffic with advanced traffic estimator tool. See any website’s traffic sources & uncover their online marketing strategies.

Wayback Machine: See the history of your website or your competitor’s site.

Open Site Explorer: Use this tool to to see the domain authority and inbound links of any or your competitors’ website.

Keyword Spy: FREE SEO & PPC Keyword Research software tool, that unveil your competitors’ most profitable Ad copies & keywords. Learn from time-tested Ad campaigns.

Alexa: Alexa provides analytical insights to benchmark, compare and optimize businesses on the web.

Tag Crowd: TagCrowd is a web application for visualizing word frequencies in any text by creating what is popularly known as a word cloud, text cloud or tag cloud.

Free SEO Report: Free SEO Report tells you what’s wrong and right with your website. You get 100% free seo reports that are useful and actionable.

Free SEO Report Card: Inbound marketing and SEO software helps small businesses and agencies get free traffic from search engines and social media. compares your URL with your competitor and offers detailed reports and suggestions.

Marketing Grader: Marketing Grader (formerly Website Grader) is a free tool that measures and analyzes all of your marketing efforts & gives actionable advice on how to improve.

How Good Is Your SEO: Free SEO Report Tool analyzes your website’s Keywords, Content, and Popularity. You can compare your website with up to two Competitors and it will show the score in percentage terms for each SEO aspect.

Majestic SEO: Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.

Majestic SEO Comparator: Provide data on referring domains, indexed URLs, Class C subnets, referring IP addresses, educational referring domains, governmental Referring Domains and external backlinks for the URLs which you enter.

Side-by-Side SEO Comparison Tool: Find all the ways keyword text is used on webpage with this invaluable tool. The Side-by-Side SEO Comparison Tool compares two sites in a side-by-side report. You can quickly see see how your page and a competitor’s page use keywords, how much text is on the page, and which keywords are used.

SEO Workers Analysis Tool: SEO Workers FREE search engine optimization analysis tool is to help you analyze and measure the ranking potential of your web pages.

Traffic Travis: SEO Software for all your SEO & PPC Management needs. Use Traffic Travis for both on and off page analysis as well as spying on your competitors.

Site Comparison: Site Comparison service allows you to compare two pages using multiple seo aspects. Use this pages comparison service to compare some of the most important elements on your webpage opposed to your main competitors.

Reverse Internet: View backlinks and anchor texts for any page or website to understand why certain website ranks one way or the other.

Ahrefs: The tool can show links (including new and internal), linking domains, anchors, and best pages of a domain.

SpyFu: SpyFu exposes the search marketing secret formula of your most successful competitors.

SEO Crawler: This tool makes it easy to crawl any type of website and to get the most important SEO data – title, description, keywords, site structure, missing links, broken links and more. You can crawl you own website or your competitors.

SEO SpyGlass: This software let you spy on your top-ranking competitors and get detailed information on why they rank well (including their complete link building strategy!).

 LinkDiagnosis : Easily see backlinks from your competitors.  This tool can show you all the important information about your competitor’s links. The report includes pagerank, anchor texts, no-follow information and more.

Backlink Watch: Backlink Watch greatly helps you to know every bit about your inbound links. It includes anchor text, pagerank, quality of backlinks by finding total outbound links any restriction of nofollow tag.

Analyze Backlinks: Free backlinks checker tool since 2012. Unlimited usage and full data. Yahoo SiteExplorer alternative.

 Advanced Link Manager (software): Advanced Link Manager helps you keep track of incoming links for your website and for your competitors websites at the same time. Fully featured 30 days trial.

Link Audit and Link Building Tools

A link audit too will help you to review site’s link profile so that you can understand where your site stands before you start planning a link building campaign. This tool will also help you to recover from Google penguin or manual penalties. On the other hand, a link building tool will help and manage your link building campaign. Please use these tools wisely as we don’t recommend using any automatic link builder as manual link building is the best way to get backlinks. Furthermore, we don’t recommend disavowing any backlinks, since every single link is worth, you only need to concentrate on your overall anchor text ratio so that you do not over do it.

Rmoov: Rmoov make it easier to handle link removal requests at larger scale. If cleaning up bad backlinks seems too hard, rmoov can help. Try it now for free.

Whitespark Local Citation Finder: Improve your local rankings and discover the best citations in your industry. Featuring competitive analysis, 100s of citations, citation monitoring & more.

Backlink Generator: This backlink tool builds free 325 backlink from high PR sites with a push of a button. Best seo tool to get fast backlinks for your website.

247 Backlinks: Create a ‘backlinks project’ with your URLs, the keywords you want to rank for and schedule it, You will receive 1,000 backlinks absolutely free for doing so.

REAL Backlinks: Generate 100+ high quality backlinks for FREE in less than 1 minute. No need to sign up! Free backlinks generator with guaranteed instant backlinks.

Get Free Backlinks: Get Free 5000+ Backlinks to boost your search engine position.

Auto Backlink Generator: This website creates nearly 250 backlinks instantly. Just submit your URL and ping it for quick crawling and indexing.

IMT Website Submitter: This tool creates pages about your website/blog on everyone of these websites, resulting in about 1,800+ different pages in some cases with backlinks pointing back to your website. All these 1,800+ websites are manly “who is”, “about us”, “website statistic”, etc. type of services.

Auto Backlink: You will get 100+ instant backlinks with this tool.

Free Backlink Generator: This tool creates over 500+ backlinks for free.

Free Backlink Tool: This tool helps to creates up to 500 backlinks.

Auto Link Submit: Submit your websites and blogs to thousands of high page rank link directories with semi automatic and easy tool. Add your sites to tens of search engines with a single click. Keep track of all your submissions and get notified when a new directory is added.

Fast Directory Submitter(software): With smart build-in features of Fast Directory Submitter, you can save a lot of your time, money and generate natural traffic to your sites. With free plan you can submit your website to 150 web directories.

Directory Critic(List): Directory lists and link building resources. The Ultimate resource for Lists of free and paid directories online

Analytics and Tracking Tools

You will need these tools to track the visitors to your website, and generate reports that will help you with your marketing campaign. Such tools usually generate detailed statistics about a website’s traffic and traffic source and measure conversion and sales. Statistical data about your visitor traffic help to convert into meaningful reports. So that you can make website management decisions on a daily basis, for example, content updates or making some changes were needed.

YouTube Analytics: YouTube Analytics lets you monitor the performance of your channel and videos with up-to-date metrics and reports. There’s a ton of data available in different reports (e.g. Views, Traffic sources, Demographics).

Google Analytics: Google Analytics is one of the best free tools that any website owner can use to track and analyze data about Web traffic.

Clicky Web Analytics: This tool simply the best way to monitor, analyze, and react to your blog or web site’s traffic in real time.

Piwik: Piwik is the leading open source web analytics platform that gives you valuable insights into your website’s visitors, your marketing campaigns and much more, so you can optimize your strategy and online experience of your visitors.

GA Checker: Check your entire site for Google Analytics code, for free.

Circle Count: Find out your CircleRank for Google+ or who is the top followed person on Google+.

Pinalytics: Get analytics for Pinterest.

Bookmarklet for Google Ripples: View Google Ripples for a web page without going to Google+ website.

Social Media Tools

These tools can help you to manage and update your social media pages and profiles.

Buffer app: Buffer app, a standalone social media scheduling tool, is one of the best out there. Can make your social updates on Twitter, Facebook, LinkedIn and much simpler to manage.

Follower Wonk: Twitter analytics, follower segmentation, social graph tracking, and more.

Hootsuite: Enhance your social media management with Hootsuite, the leading social media dashboard. Manage multiple networks and profiles and measure your campaign results.

KnowEm: This tool allows you to check for the use of your brand, product, personal name or username instantly on over 500 popular and emerging social media websites.

Row Feeder: Social Media monitoring and analysis. Simple Twitter and Facebook monitoring, beautiful reports and analytics in Excel.

Shared Count: Track URL shares, likes, tweets, and more.

Social Crawlytics: Free social media tool to Identify the influence’s and your competitor’s most shared content and find out who shared their content.

Social Mention: Social media search engine that searches user-generated content such as blogs, comments, bookmarks, events, news, videos, and microblogging services.

Social Tally: See any webpage’s social shares.

Twitter Pounce: This tool allows you to wait for someone specific to tweet then instantly you can tweet back a pre-selected message.

Topsy Social Media Analytics: This tool allow you to search by time & place, set alerts, and analyze sentiment for every tweet ever made. Search our entire database free.

BackTweets: This tool enables you to search through an archive of old tweets and find tweets that link back to your site.

Who Tweeted Me: This tool will analyze a URL and show you its most influential retweeters, potential reach and timeline.

Tweriod: Free twitter tool that helps you make the most of Twitter by letting you know the best time to tweet.

Alternion: Manage multiple social media accounts with one app.

Blog Social Analyzer: Use this tool to view social stats for every post from a blog’s RSS feed (or other RSS feed). Perfect for monitoring the social success of your recent blog posts,

Hashtagify: See how many times/hr a hashtag is used, find related hashtags, and compare the popularity of different hashtags.

Tags for Likes: Top tags on Instagram. Get more followers and likes on Instagram.

Domain and Hosting Tools

Who Is: Research domain ownership with Whois Lookup: Get ownership info, IP address history, rank, traffic, SEO & more. Find available domains & domains for sale.

Who Is Hosting This: A webmaster tool that lets you discover which web host any site is hosted with. Also publish reviews, deals and webmaster resources.

Web Tool Hub: DNS lookup tool to find Mail Exchanger (MX) Name Server (NS) CNAME TXT (SPF) and Start of Authority Record (SOA) of a web site.

DNS stuff: Offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.  Explore monitoring products and free DNS tools.

Domain Name Generators: Find available domain names. Smart domain search, domain name contests and keyword suggestions.

Dot-o-mator: Use Dot-o-mator to create domain name suggestions.

Bust a Name: This free tool lets you enter words and it will try every combination and tell you which are available.

Name Boy: Best available domain names search and registration site.

Domain Name Soup: A free domain name generator to help you find available domain names.

123 Finder: Search, generate or browse for domain names from their database by length, dictionary, keywords or other advanced criteria.

Domains Bot: Available domain suggestions + expired, expiring and for sale domain name search + whois lookup. Domain + Twitter + Facebook identity suggestions.

SQUURL: Find the domain name of your dreams.

PC Names: Check and register available domain names instantly! Advanced tools for bulk domain search, domain suggestion, deleted, expired, and premium domains for sale.

Domize: Domain name search engine that begins looking up the availability of a domain name as soon as you start typing it. Domize provides a secure and private environment to search for your next domain name.

Instant Domain Search: Find domain names instantly as you type. Search .com and other extensions in real time. Suggestions and names for sale also appear immediately.

Domain Typer: This free Domain Name Search helps you find available domain names. Search instantly as you type. Supports every extensions.

Domainr: Finds domain names and short URLs. Instantly check availability and register for all top-level domains.

Domain Hack: Suggests a word, phrase, or name when concatenating two or more adjacent levels of that domain.

Wordoids: A tool to pick a short and catchy name for your product, company or domain. Great source of quirky ideas of available domain names that roll off the tongue.

WHOIS: Find information on any domain name or website. Large database of whois information, DNS, domain names, name servers, IPs, and tools for searching and monitoring domain names.

Domjax: A combination of free seo tools, page rank checks, html validity, free domain name search, traffic information tools and many more.

Lean Domain Search: Lean Domain Search helps you find a great available domain name in seconds.

Domain Name Sales: Search domain name sales database containing more than $1 billion in sales. Research domain values and prices with comparable sales.

Reverse IP: Find all domains hosted on an IP address by domain or IP address.

Expired Domains: StuckDomains is 100% Free Search engine, to search Expired Domains and Dropped Domains, which are released from Popular Registrars.

Data Visualization Tools

Make your data standout. With data visualization tools you can easily create infographics, interactive data visualizations, and motion graphics.

Wordle: Wordle is a tool for generating “word clouds” from text that you provide. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are yours to use however you like.

COLOR BREWER 2.0: Get exportable color sets for creating maps.

Zing Chart: ZingChart is a powerful library providing users with the ability to quickly create beautiful charts, dashboards, and infographics.

Fusion Charts: Create interactive JavaScript charts for your web and enterprise applications. Get 90+ chart types and 965 maps, readymade business dashboards and demos.

D3: D3 is a JavaScript library for visualizing data with HTML, SVG, and CSS.

ChartBlocks: Build charts online with the easy to use ChartBlock chart designer interface. Upload your data then set to work designing your chart.

Dashboard: Build visual dashboard for database directly without programming.

JSON to CSV: Convert JSON to CSV. Upload JSON file, url or text. View in Excel or Open Office.

Pixlr: Pixlr is online photo editor.

Visualize Free: A free visual analysis tool. No software to install. Upload a dataset and create a visualization on your data in minutes.

Dipity: Create an interactive, visually engaging timeline in minutes. Use dynamic visualization tools to display photos, videos, news and blogs in chronological order. Browse through visually stunning timelines created by popular newspapers, politicians, celebrities, teachers and the Dipity community.

Raw: Raw is an open web app to create custom vector-based visualizations on top of the amazing D3.js library through a simple interface.

Chart.js: Simple, clean and engaging HTML5 based JavaScript charts. Chart.js is an easy way to include animated, interactive graphs on your website for free.

Google Chart: A tool that lets people easily create a chart from some data and embed it in a web page. Google creates a PNG image of a chart from data and formatting parameters in an HTTP request.

Easel.ly: simple web tool that empowers anyone to create and share powerful visuals (infographics, posters) no design experience needed! We provide the canvas, you provide the creativity.

Infogram: Create infographics and interactive online charts. It’s free and very simple.

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Please Note: Help us to add more SEO Tools (FREE) which is not listed above. You can leave the URL of your favourite SEO tool is the comment section.