Link Building Tools 2026: Best Free and Paid Options

1. What are the best free link building tools?

The best free link building tools are Google's own stack plus the free tiers of the big SEO suites. Each one shows you a place a link could come from, then you go and earn it.

Start with Google Search Console, Google Alerts and search operators. Add the free Backlink Checker from Ahrefs, the free Semrush checker, and Ubersuggest for competitor links. That covers most of what a small business needs.

Why bother at all? Because links are one of Google's named top ranking signals, alongside content (Search Engine Land, 2016). And the gap is real. The #1 result has on average 3.8x more backlinks than the pages just below it (Backlinko, 2020).

You do not need hundreds. You need a few from trusted, relevant sites. If you want the full strategy behind the tools, read our guide on how to get backlinks, or let our SEO team handle the heavy lifting.

2. The free Google stack comes first

The first link building tools you should use are free and already from Google. They show your current links and catch new chances, all without a card. Most small businesses can find weeks of work here before paying for anything.

Google Search Console. The Links report shows your top linking sites and your most linked pages, straight from Google. It tells you what you already have, which is where any plan should start. New to it? Our walkthrough on using Google Search Console covers the Links report step by step.

Google Alerts. Set an alert for your business name and your founder's name. When a site mentions you without a link, you get an email. Then you ask nicely for the link to be added. This one tactic deserves its own playbook, which we wrote up in turning unlinked mentions into links.

Search operators. These are little commands you type into Google. Try intitle:"resource" your topic or "useful links" your topic to find pages that already list helpful sites. They cost nothing and surface pages that might list you too.

3. Find competitor backlinks with free checkers

To find competitor backlinks for free, run a rival's homepage through a free backlink checker and read who links to them. Those same sites often link to businesses like yours. This is the fastest way to build a short list of real chances.

Ahrefs free Backlink Checker and Webmaster Tools. The free checker shows a competitor's top linking sites. Ahrefs Webmaster Tools, free if you verify your own site, shows your own links in more depth.

Semrush free backlink checker. Same idea, a different sample of links. Running both gives you a wider view, since no single tool sees every link.

Ubersuggest. A friendly, mostly free option that lists backlinks and a few daily searches before it asks you to upgrade.

The catch: every free tier caps how many rows you see. You get the top results, not the full list. For a small business that is fine, you only need a handful of solid chances. For a wider look at what is worth paying for, see our roundup of SEO tools for small business.

4. Find broken links to replace

Broken-link building is one of the cleanest tactics, and the tools to find broken links are free. You scan a useful page for links that lead to a dead 404 error. If you have a page that fits the dead one, you offer yours as the fix.

Check My Links. A free browser add-on. Open a resource page, run it, and dead links light up in red. Simple and fast.

A free dead-link checker. Several free web checkers scan a whole page or site for broken links without any install.

Screaming Frog. The free version crawls up to 500 URLs of any site and lists every broken link. That is plenty for one resource page or a small site.

The workflow is the same each time. Find a dead link on a page in your topic. Make sure you have a page that genuinely replaces it. Email the site owner, point out the broken link, and offer yours. You are helping them, so the ask feels fair.

5. Find list and resource pages

Some pages exist just to link out to good sites. To find these resource pages, use search operators, then check if you belong on the list. This is one of the easier ways to earn a relevant link.

Try searches like your topic + "resources" or your topic + "recommended sites". Read each page. If the list fits your business and you would add value, you reach out and ask to be included, with a clear reason why your page helps their readers.

Journalists and bloggers are another source. Services like Qwoted, Featured and SourceBottle connect you with reporters who need a quick quote, and a quote often earns a link back.

HARO, and Connectively which replaced it, both shut down in 2024. It is one of the routes we walk through in our guide to how to get backlinks.

6. Track the links you earn

Once you start earning links, track them, or you will lose count and repeat work. The free tools you already have cover this job too. No special tracker needed.

Check the Search Console Links report every month to see new linking sites appear. Run the free backlink checkers now and then to spot links the tools have picked up.

Then keep a plain spreadsheet: the linking site, the page it points to, the date, and whether the link is still live. That is the whole system.

7. Free link building tools by job, at a glance

Here is the whole set grouped by the job it does, with the catch on each so you know what you are getting.

8. Finding is not earning

Here is the part the shiny tool ads skip. Every tool on this page gives you a list. None of them earns the link.

A link comes from a useful page that someone wants to point their readers to, plus a short, polite email that makes the ask easy to say yes to. The tool does the finding. You do the earning.

That matters because links carry real weight. Pages with no referring domains get almost no traffic. Ahrefs studied this and found roughly 20 million pages with no links, yet only 2,997 of them pulled in 1,000 or more monthly visits (Ahrefs, 2023).

The same study found 96.55% of all pages get zero traffic from Google. No links usually means no visitors. A few earned links from trusted, relevant sites is one of the surest ways out of that group.

If outreach is not your thing, that is normal. Some businesses would rather hand it over. We weigh up the risks and the wins of doing that in our honest look at link building services.

Or if you want a team to find the chances and earn the links for you, tell us about your site and we will take it from there.