At Moz, we know the value of premium SEO tools — we’ve built new tools for 10+ years. Paid tools are hugely valuable in SEO when you need advanced features, increased limits, stored data, or online support.

But for 70 percent of other tasks, a free tool often does the trick.

There are literally hundreds of free SEO tools out there, so we want to focus on only the best and most useful to add to your toolbox. Tons of people in the SEO community helped vet the SEO software in this post (see the note at the end). To be included, a tool had to meet three requirements. It must be:

1. Widely used by the SEO community
2. Offers above-board value + actionable data
3. Actually, truly free

The tools are categorized by SEO function. Click on a button below to jump to that specific section.

Analytics

The best tools to analyze search performance, monitor SERPs, keywords, and competitor analysis:

1. Bing Webmaster Tools

While Google Webmaster Tools gets all the glory, folks forget that Bing Webmaster offers a full suite of website and search analytics. Especially useful are keyword reports, keyword research, and crawling data.

Get it: Bing Webmaster
Also useful: Yandex.Webmaster

2. Data Studio

If you need to merge data from different sources (say Search Console and Google Analytics), visualize, and share it – this is Google Data Studio’s comfort zone. For an idea of all the SEO tasks and dashboards that you can build for free, check out these Google Data Studio Resources from Lee Hurst.

Get it: Data Studio

3. Enhanced Google Analytics Annotations

How do you know if your dip in traffic (or rise) is associated with a Google Algorithm update, or perhaps a major holiday? This is a highly-recommended Google Chrome plugin that overlays additional data on top of your analytics, so you can easily send screenshots to clients showing exactly how outside forces impacted traffic.

Get it: Enhanced Google Analytics Annotations
Alternatives: Panguin Tool, Zeo Tools

4. Google Analytics

The big kahuna, and the most widely-used web analytics package on earth. For being free, Google Analytics is surprisingly robust and plays well with other Google products, including Optimize, Search Console, and Data Studio. Some folks have privacy concerns with GA — though Google swears they don’t use this data for search rankings.

Get it: Google AnalyticsAlternatives: Clicky, Open Web Analytics

5. Search Console

Probably the most useful free SEO tool on this entire list, it’s hard to imagine doing modern SEO without access to the data inside Google’s Search Console. This is the most reliable location for information on how Google crawls and ranks your site, and is one of the only places where you can get reliable keyword data.

Get it: Search Console

6. Keyword Hero

Did somebody say (not provided)? Keyword Hero works to solve the problem of missing keyword data with lots of advanced math and machine learning. It’s not a perfect system, but for those struggling to match keywords with conversion and other on-site metrics, the data can be a valuable step in the right direction. Pricing is free up to 2000 sessions/month.

Get it: Keyword Hero

7. MozCast

The brainchild of Dr. Pete and the original Google SERP tracker, MozCast is the go-to algorithm tracker whenever there’s a big update, or not. Also useful are the SERP tracking features showing the prominence of such features as ads and knowledge panels.

Get it: MozCast
Also useful: Algoroo, Rank Risk Index, Ayima Pulse

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Crawling/Indexing

Specific tools to make sure your site is crawlable and optimized.

8. Beam Us Up

If you need a free, desktop crawler, you can’t do better than Beam Us Up. While it doesn’t have as many features as Screaming Frog, it does offer 100 percent free crawling with no limits. Windows only.

Get it: Beam Us Up

9. Link Redirect Trace

A free Chrome extension, lots of SEOs recommend Link Redirect Trace as the “all-in-one redirect path analyzer.” The extension reveals information about HTTP headers, rel-canonicals, robots.txt, and basic link metrics from LinkResearchTools. The “Save Screenshot” feature is super useful too.

Get it: Link Redirect Trace

10. Redirect Path

Similar to Link Redirect Trace, Redirect Path is a nifty tool from the good folks at Ayima that shows redirect paths and header information for every URL you visit. Gotta admit, I’ve used this extension for years and it’s almost “always on” in my browser.

Get it: Redirect Path

11. Screaming Frog

Aside from having one of the best Twitter accounts of any SEO tool maker, Screaming Frog is the most popular desktop-based crawler available today. Many people don’t realize that there’s a free version that allows for up to 500 URLs per crawl. While not as fully functional as the paid version, it’s great for small projects and smaller site audits.

Get it: Screaming Frog

12. Screaming Frog Log File Analyzer

Most folks in the SEO space are familiar with Screaming Frog, but many don’t realize that the Frog also offers a standalone free/paid Log File Analyzer tool. The free version is very robust, though limited to 1000 lines.

Get it: Screaming Frog Log File Analyser

13. SEOlyzer

SEOlyzer is a log analysis tool recommended by Aleyda Solis in her very excellent SEO podcast Crawling Mondays. SEOlyzer is a terrific log analysis tool with some cool features like real-time analysis and page categorization.

Get it: SEOlyzer

14. Xenu

Gotta be honest, although Xenu has been on every “free SEO tool” list since the dawn of, no way did I think it would make this one. This Windows-based desktop crawler has been virtually unchanged over the past 10 years. That said, a lot of folks still love and use it for basic site auditing, looking for broken links, etc. Heck, I’m leaving here for sentimental reasons. Check it out.

Get it: Xenu

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Keyword Research

15. Answer The Public

It’s hard not to love Answer The Public. The interface has an almost “Cards Against Humanity” rebel vibe to it. Regardless, if you want to generate a massive list of questions from any keyword set, this is your go-to tool.

Get it: Answer The Public

16. Keyword Explorer

OMG. 500 million keyword suggestions, all the most accurate volume ranges in the industry. You also get Moz’s famous Keyword Difficulty Score along with CTR data. Moz’s free community account gives you access to 10 queries a month, with each query literally giving you up to 1000 keyword suggestions along with SERP analysis.

Get it: Keyword Explorer

17. Keyword Planner

Google’s own Keyword Planner was built for folks who buy Google ads, but it still delivers a ton of information useful for SEO keyword planning. It uses Google’s own data and has useful functions like country filtering. Be careful with metrics like competition (this is meant for paid placements) and volume — which is known to be confusing.

Get it: Keyword Planner

18. Keyword Shitter

Yes, it’s called Keyword Shitter. It pains me to write this. That said, it says what it does and does what it says. Type in a keyword and it, um, poops out a poop-ton of keywords.

Get it: Keyword Shitter

19. Keywords Everywhere

An SEO favorite! Install this browser extension for Firefox or Chrome, and see keyword suggestions with volume as you cruise the internet. Works in Google Search Console as well. This one is a must-have for keyword inspiration.

Get it: Keywords Everywhere

20. Ubersuggest

Sometimes I make fun of Neil Patel because he does SEO in his pajamas. I’m probably jealous because I don’t even own pajamas. Regardless, Neil took over Ubersuggest not long ago and gave it a major overall. If you haven’t tried it in a while, it now goes way beyond keyword suggestions and offers a lot of extended SEO capabilities such as basic link metrics and top competitor pages.

Get it: Ubersuggest

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Link Tools

Tools to find, evaluate, and process backlink opportunities.

21. Disavow Tool

Google makes the Disavow Tool hard to find because most site owners usually don’t need to use it. But when you do, it can be useful for getting penalties removed and some SEOs swear by it for fighting off negative SEO. If you choose to use this tool, be careful and check with this guide on disavowing the right links.

Get it: Disavow T