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Choosing the best free SEO tool depends on the goals you have.

• SayNine affiche une note de 4,8/5 free tools cover site audits, SERP previews, and dofollow link checks with no paid plan needed.
• For tracking search performance and visitor behavior, Google Search Console et GA4 are essential.
• Ahrefs’ free tools handle backlinks, keyword ideas, and domain authority checks.
• For a deep technical audit, Screaming Frog SEO Spider is the right tool, free for up to 500 URLs.

Can’t seem to finish your SEO tasks? Plus, you have a tight budget and can’t afford costly packages of SEO tools.

It doesn’t have to be this way. The best free SEO tools can do the work for you.

They save time and money and make your job easier, so you can focus on what matters.

In this article, we will present you with some free tools you can use.

Before that, here’s a quick overview of those solutions.

Outil	Meilleur pour	Free limit	Sign-up needed
SayNine Free SEO Audit	Full site audit	Up to 2 sites per 24 hours, 2,000 pages each	✅ Oui
SayNine SERP Preview	Checking how pages look in search	No limit	❌ No
SayNine Dofollow Backlink Checker	Spotting dofollow vs nofollow links	No limit	❌ No (browser extension)
Google Search Console (GSC)	Search performance and indexing	Free, no cap	✅ Yes (Google account)
Google Analytics (GA4)	Visitor behavior on your site	Free, no cap	✅ Yes (Google account)
Ahrefs Free SEO Tools	Backlinks, keywords, technical audit	Limited results per search	✅ Yes (verify site)
Screaming Frog SEO Spider	Deep technical crawl	500 URLs per crawl	❌ No

How We Chose These Free SEO Tools

There are a lot of tools out there. So why these? Here’s the methodology behind our picks.

• Tested each tool ourselves. Our link builders and SEO team use these tools on a daily basis, so I ran through all 7 for this article.
• Mapped each tool to a core SEO task
• Prioritized truly free access, usability, and clean output

And here’s why these tools stood out:

• These are actually free
• Trusted names that SEO professionals use every day
• Each tool covers an important task

How Free SEO Tools Can Help You

So what can free SEO tools actually give you? Here are a few ways those solutions are worth your attention.

• Save money: Paid plans like Semrush and Ahrefs give you access to more features and more detailed data about your website performance. But free tools save you money and still give you enough to run your SEO well.
• Track your website performance: Using free SEO tools, you can monitor your clicks, impressions, and Google rankings. This lets you make the right decisions for refining your SEO strategy.
• Find technical issues: With the best free SEO tools, you can find all the technical problems hurting your site. This keeps your website healthy.
• Get traffic insights: See where your visitors come from and what they do on your site. Then you can take those insights and build a higher-converting website.
• Find new keywords: Free tools help you find out what your audience is searching for, so you can create compelling content.

Top 7 Free SEO Tools You Need to Use in 2026

SayNine’s Free SEO Tools

SayNine offers several free SEO tools. Here are a few that make your SEO easier to manage.

Free SEO Audit Tool

SayNine affiche une note de 4,8/5 free SEO audit tool auto-crawls up to 2,000 pages on your site and emails you a report in about 15 minutes.

• Vérifications: 8 issues: broken links, redirects, messy URLs, page titles, H1 tags, meta descriptions, image alt text, and heavy image file sizes.
• Report features: Progress tracker, priority labels (Critical vs Nice to Fix), responsibility tags (Developer, Content and SEO, or Designer), a linked Google Sheet of affected URLs, video walkthroughs for each fix, and a free 30-minute consultation with the CEO.
• Limit: Jusqu'à 2 sites par 24 heures.

Free SERP Preview Tool

SayNine affiche une note de 4,8/5 SERP Preview tool shows how a page will look in Google search results, on both desktop and mobile.

• Two modes: Fetch tags from a live URL, or draft a snippet manually before publishing.
• Caractéristiques: Pixel-based title truncation (~580px) plus a 60-character title counter, character count for descriptions (160-character limit), a URL length check, and side-by-side desktop/mobile preview.
• Guidance given: Titles around 50 to 60 characters, descriptions 140 to 160 characters, front-load your keyword, add a call to action.

Free Dofollow Backlink Checker

SayNine’s free dofollow backlink checker is a free Chrome extension that highlights dofollow and nofollow links right on the page you’re viewing, so you don’t need to dig through HTML.

• Comment ça marche : Install the extension, browse any page, and link types get highlighted automatically in the background. Green means dofollow; red means nofollow.

Google Search Console (GSC)

Google Search Console is a free tool that shows how your site performs in Google Search.

➤ Key features

• Search traffic data showing how often your site appears in Google Search, which queries bring users to it, and how often they click through.
• The URL Inspection tool, which shows detailed crawl, index, and serving info for any page
• Sends email alerts when Google finds indexing or other issues on your site

➤ Extra tools
You can submit sitemaps and individual URLs for crawling, and review index coverage to keep Google’s view of your site fresh.

➤ Requirements: A Google account.

Google Analytics (GA4)

Google Analytics is a free tool from Google that shows you who visits your website or app, how they got there, and what they are doing there.

• What it does: Helps you understand your customers, then use what you learn to improve your site, build audience lists for ads, and more.
• Key focus: Shows how people use your site and app across their whole journey, so you can see what’s working and what isn’t.
• Extra capability: Uses Google’s machine learning to predict what users might do next, like who’s likely to buy or leave.
• How it fits with Search Console: Search Console shows how Google sees your site in search. Analytics shows what visitors do after they land on it. You can integrate those tools for a fuller picture.

Ahrefs Free SEO Tools (formerly Ahrefs Webmaster Tools)

You have probably heard the name. Ahrefs is one of the most popular SEO tools, with various plans and packages.

Besides that, it offers free SEO tools:

• Keyword Generator: Finds keyword ideas.
• Keyword Difficulty Checker: Shows how hard a keyword is to rank for.
• SERP Checker: Shows the top 10 results for a keyword.
• Keyword Rank Checker: Tracks your site’s ranking.
• Backlink Checker: Shows a site’s backlinks.
• Broken Link Checker: Finds dead links to fix.
• Website Authority Checker: Gives a Domain Rating score.
• Website Traffic Checker: Estimates a site’s organic traffic.

Screaming Frog SEO Spider

The last tool in our listicle is Screaming Frog SEO Spider. It’s a website crawler that audits your site for over 300 SEO issues.

• Free version: Free to download, no sign-up needed, but capped at 500 URLs per crawl. It also limits crawl config, saving crawls, and advanced features like JavaScript rendering.
• Core features: Finds broken links and server errors, with bulk export. It also spots redirects, chains, and loops.
• How it crawls: Crawls like Googlebot and can render pages with headless Chromium to catch JavaScript content.
• Paid license: $279/year. Removes the 500 URL limit and unlocks advanced features.

With Screaming Frog, you can improve user experience and boost SEO. Read SEO Spider’s user guide to get to know the setup process and get the most of the free version.

Pour conclure

With free SEO tools, you’re killing two birds with one stone: saving money while getting enough insight into how your website is doing and how you can make things better.

We’ve presented the best free SEO tools and the most useful ones. Choose one that suits your needs and goals, then improve your website’s SEO and make informed decisions, all while saving money.

Start with SayNine’s free SEO audit, get a list of fixes, plus a free 30-minute consulting call with our CEO, and improve your website one step at a time. And if you don’t have much time, we also offer SEO audit services to help you improve your site’s performance.

FAQ about the best free SEO tools