To me, SEO industry is the only industry where people love to share the stuff they do everyday. It ranges from Tools to techniques to executions and the process - you will find everything freely on different blogs and forums without paying any dimes.

In addition to that, people and entrepreneurs are actively producing top notch SEO tools and SaaS products for free for the betterment of the community (still there are some catches exist, but still worthy).

Though there are some limitations for every free tool, but still these are worth trying as these costs you no money at all and 90% of time gets your jobs done!

I have a dedicated page where I outlined all the Premium & Freemium SEO tools I use regularly, but this time I am going to share all the SEO Tools those are completely free and serves you what exactly you need.

Here you go one by one (sectioned by usage category like Keyword Research, Content, Link Building, KW Tracking and Website UI & UX).

1. Keyword Research :

• Ubersuggest - Neil put an insane amount of effort here and made this tool even better than some paid tools out there. Pretty good tool for KW Research and Backlink Analysis.
• Google Trends - After researching keyword by Ubersuggest, make sure you search it on Google Trends to check
• Keyword Shitter - Generate thousands of keywords from a single seed keyword in just a single click.
• Keywords Everywhere - A Browser extension that can show you the search volumes and Adwords CPC everytime you put any search phrases on Google box.

2. Competitor Analysis:

• SEOQuake (Chrome Extension) - It gets better if you integrate SEMrush with this tool. Shows you website's Domain Score, Trust Score, Referring Domains (links), Indexed Pages (Google, Yahoo, Bing) and other important SEO metrics.

3. Keywords For Featured Snippet

• AnswerThePublic - Best questions based keywords generator. Mainly scrape keywords from Google Auto suggest and this is the only reason I actively use this tool.

4. Article Title Idea:

• Portent Title - Doesn't generate that much good title always. But you can generate pretty much unique title everytime from a single seed keyword.

5. Content Mapping For Blog:

• SimpleMind Lite (Mac) - Helps me a lot creating silo structure of a new website and creating a idea map is super easy to make with SimpleMind.
• Freemind (Windows)
• Coggle (Online)

6. Content Quality (readability):

• Webfx - Gives you accurate content readability score based on couple of other readabily metics provided by other tools out there.

7. Content Grammar & Duplicity

• Grammarly (Chrome Extension) - I use the pro version of grammarly but the free extension pretty much does everything you need it to do. From grammar checking to fixing punctuation to fine tuning your words choosing, you can use grammarly free everywhere. Their desktop tool is awesome too!
• Copyscape - I extensively use Copyscape to check whether my contents have been copied by my writers from somewhere or not.

8. Website Speed:

• Pingdom - Offer pretty accurate speed metrics along with some actionable suggestions those are easy to apply on the site.
• Gtmetrix - Similar tool like Pingdom but offer even more suggestions for free.
• ShortPixel - ShortPixel is an awesome tool to automatically resize and compress your website images without loosing your image quality at all. I just tick on the Glossy parameter inside their settings and this tool does the rest.

9. Website UI&UX Checker:

• Google Lighthouse (Chrome Extension) - You will never know how much valuable suggestion this free Google Tool can give you in a single click. I am just loving this free chrome extension everyday.
• UXCheck (Chrome Extension) - Don't use that much but pretty handy and fast.

10. Website SEO Audit:

• ScreamingFrog - My go-to website SEO audit tool along with SEO-Auditor from LinkAsssistant. Little bit technical but once when you will get used to it; this might be your ultimate technical SEO audit tool for sure.