Best SEO Link Building Tools
Looking to improve your Google rankings without spending hours chasing backlinks? These free SEO link building tools can help you find opportunities faster, track your progress, and stay ahead of the competition. No guesswork required.
Written by Keiran Griffiths
Last updated July 7, 2025 • First published March 4, 2024

If we’re being completely honest, link building is one of the most powerful (and challenging) parts of SEO.
Earning high-quality backlinks can significantly improve your visibility in Google search, but doing it well requires the right tools. This is especially true for business owners who are already balancing multiple responsibilities.
In this article, we’ll explore some of the best free SEO link building tools that help you find backlink opportunities, monitor your site’s link profile, and keep an eye on the competition. Whether you’re just starting out or looking to refine your current strategy, these tools can give you the insights and time-saving features you need to build stronger SEO momentum.
In this article, we explore some of the best free SEO link building tools available today. These tools can help you find new backlink opportunities, monitor your existing link profile, and better understand what your competitors are doing. Whether you’re just getting started or want to sharpen your current approach, these tools can give you the clarity and efficiency you need to grow your SEO results.
If your website isn’t attracting many leads or customers are struggling to find you online, it might be time to focus on strengthening your backlink profile. These free link building tools help monitor backlink profiles, identify link-building opportunities, and manage potentially harmful links.
Why You Need Link Building Tools as a Business Owner
Building high-quality backlinks is still one of the most effective ways to improve your search rankings but doing it manually is slow, risky, and often inefficient. Link building tools help you streamline the process, stay competitive, and grow your online visibility more strategically. Here’s how:
Save Time and Effort
Link prospecting and outreach can take hours. With the right SEO link building tools, you can quickly find quality opportunities, automate parts of the process, and focus your energy where it counts.
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See What’s Working for Competitors
Want to know why your competitors are outranking you? Link building tools reveal where their backlinks come from, helping you spot gaps in your strategy and uncover new link opportunities.
Leverage AI to Work Smarter
AI is making link building faster and more strategic. Today’s tools use AI to identify quality link prospects, predict which outreach efforts are most likely to succeed, and even generate personalized outreach messages. This means less guesswork, better targeting, and a more scalable link building strategy.
Prioritize High-Quality, Relevant Links
Not all backlinks are good for your website. In fact, the wrong ones can hurt. SEO link building tools help you choose valuable links that improve your site’s reputation. Backlink tools are all about helping you evaluate link quality, relevance, and authority so that you can focus on links that boost your rankings and reputation.
Keep Track of Your Backlink Profile
As your business and backlink profile grows, keeping track of all your links becomes more challenging. Link building tools can help you monitor your existing backlinks, check their status, and even identify links that might be harmful to your site’s SEO.
Reduce Risk of Google Penalties
Modern link building is about quality, not quantity. Using trusted tools helps you avoid outdated tactics or spammy links that could lead to penalties or ranking drops.
Create a Better SEO Strategy
By tracking results and identifying trends, link building tools help you make better decisions. You’ll know what’s working, where to double down, and how to continuously improve your visibility online.
Simply put, tools for backlink building streamline the process of white-hat SEO link building for your business. They make it easier and more effective to draw in more customers online.
Best Free Link Building Tools
Grow your website’s visibility and a way to get more leads with these free tools that help you build backlinks for your website. Learn how to spot the best backlinks and protect your site from bad ones, helping you move up in search engine rankings.
Free Backlink Tool #1: SEMrush Free Link Checker
The SEMrush link building tool is an invaluable digital solution for business owners venturing into SEO. It’s part of Semrush, a suite of tools designed to improve online visibility and discover marketing insights. The Free Link Checker allows you to check the backlinks of any website and helps you understand the strength and quality of your own link profile.

What SEMrush Can Help You Do
- Get A Backlink Analysis – Semrush provides insights into the websites that link back to your website. You can see where your backlinks are coming from, the authority of those linking domains, and the types of backlinks (e.g., text, image, form) you have.
- Compare With Competitors – One of the features of Semrush is its ability to compare your backlink profile with that of your competitors. This comparison can help you identify gaps in your link-building strategy and uncover new opportunities for acquiring high-quality backlinks.
- Identify Toxic Links – The tool also helps identify potentially harmful backlinks that could negatively impact your SEO. Knowing which links may be toxic allows you to take action, such as using Google’s Disavow Tool (keep reading to learn about this SEO solution), to protect your site’s ranking.
- Monitor Link Building Progress – As you start to build links for your website, the Semrush Free Link Checker can monitor your progress. It updates you on new backlinks as they are acquired, enabling you to see the direct results of your link-building efforts.
Why We Like SEMrush as a Link Building Tool
SEMrush is one of the most well-rounded SEO tools on the market, and when it comes to link building, it’s especially powerful. What we like most is how it gives us a clear picture of your current backlink profile and your competitors’ so we can identify exactly where you’re missing out. The Link Building Tool is like a mini outreach CRM, with potential to help find prospects, vet them, and manage outreach all in one place.
For business owners, this means you’re not just guessing at what links you need but actually using data to prioritize the best opportunities that will move the needle. It saves time, reduces waste, and helps us focus on high-quality backlinks that actually support your SEO growth.
SEMrush provides insights into the websites that link back to your website. You can see where your backlinks are coming from, the authority of those linking domains, and the types of backlinks (e.g., text, image, form) you have.
Free Backlink Tool #2: Google Alerts
Google Alerts is a simple tool for monitoring your online presence and uncovering new backlink opportunities. It’s a free service provided by Google that sends emails to you when it finds new results (such as web pages, newspaper articles, or blogs) that match your search term(s).

What Google Alerts Can Help You Do
- Monitor Keywords – You start by setting up alerts for specific keywords related to your business, products, or industry. This can include your brand name, competitors’ names, industry buzzwords, or specific phrases that are relevant to your content.
- Receive Keyword Alerts – Whenever Google indexes new content that matches your alert criteria, you’ll receive an email notification. This content could be a blog post, a news article, or a webpage mentioning one of your keywords.
- Identify Opportunities for Your Backlink Profile – By using Google’s link building tools to monitor alerts, you can identify where your business is mentioned online. If a site mentions your business but doesn’t link to your website, you can reach out and kindly ask them to add a link. This is a proactive way to build backlinks for SEO.
- Follow Competitors – Setting up alerts for your competitors’ names or products can also provide insights into where they are getting mentioned or linked. You can then explore these platforms for potential backlink opportunities for your own business.
- Find Industry Trends – Link building tools like these can help you stay updated with industry trends and news. This knowledge can help you create timely and relevant content that others are more likely to link to. Google Alerts can be a vital tool in keeping you informed about what’s happening in your sector.
Why We Like Google Alerts as a Link Building Tool
Google Alerts might not be a full-fledged SEO tool, but it’s surprisingly useful when it comes to link building, especially for monitoring brand mentions. We use it to track when your business name, products, or key team members are mentioned online. If someone talks about your brand without linking back to your site, that’s a perfect outreach opportunity to request a backlink.
It’s also great for keeping an eye on industry trends, competitor mentions, and relevant content topics. This enables you to jump on new linking opportunities as they happen. For business owners, it’s a simple, free way to stay in the loop and uncover hidden SEO wins that others often miss.
Free Backlink Tool #3: Ahrefs’ Backlink Checker
Ahrefs’ Backlink Checker offers a glimpse into the capabilities of Ahrefs’ full suite. Perfect for those starting SEO strategies. With this link building tool, you can see the top 100 backlinks to any website or page. It will help you understand where your competitors are getting their links from. This insight can guide your link-building efforts, showing you where to focus your energy.

- Identify Backlink Opportunities – By analyzing your top backlinks, you can identify high-quality sites that are already linking to you and potentially foster those relationships further. You can also look for similar sites that might be interested in linking to your content.
- Perform a Competitor Analysis – Ahrefs’ Backlink Checker allows you to analyze your competitors’ backlink profiles as well. Understanding where your competitors are getting their links from can unveil new opportunities for you to pursue similar or better backlink sources.
- Strategize Content Creation – Seeing which pages on your site attract the most backlinks can guide your content creation strategy. You can create more content that aligns with what has been successful in earning backlinks in the past.
Why We Like Ahrefs as a Link Building Tool
Ahrefs is one of the most trusted tools in the SEO world and for good reason. Its backlink analysis features are incredibly thorough, giving us access to one of the largest and most up-to-date backlink indexes available. That means we can see exactly who’s linking to your website, which pages are earning the most links, and how your backlink profile compares to your competitors’.
What we really like is how Ahrefs helps us spot valuable linking opportunities, identify potentially harmful backlinks, and track how your link profile improves over time. It also lets us dig deep into your competitors’ link strategies so we can replicate what’s working and avoid what’s not.
For business owners, Ahrefs helps us move beyond guesswork. We’re making strategic decisions backed by solid data, with the goal of building long-lasting, high-quality backlinks that drive real results.
Free Backlink Tool #4: Disavow Tool by Google
The Google Disavow Tool indirectly supports your link building efforts by allowing you to distance your site from harmful backlinks that could negatively impact your SEO. If you’ve identified damaging backlinks, this tool allows you to tell search engines to ignore these links.
It’s important to note that Google advises caution with this tool. Google suggests contacting the website owners hosting the problematic links to ask for removal before resorting to the disavowal option.

What the Google Disavow Tool Can Help You Do
- Improve Your Link Profile — By disavowing spammy or low-quality links, you can clean up your backlink profile. A healthy link profile is a factor in how search engines evaluate and rank your site. The cleaner your profile, the more credible your site appears to search engines.
- Prevent Google Penalties — Google penalizes sites that appear to be engaging in manipulative link schemes. If you’ve been the victim of negative SEO or have some questionable backlinks from the past, this is a great option. Use the Disavow Tool to help prevent potential penalties by telling Google to ignore these links in its evaluation of your site.
- Focus on Quality Over Quantity — The current SEO landscape values the quality of backlinks over their quantity. By disavowing harmful links, you’re signalling to Google that you prioritize the integrity and quality of your site’s link environment. This emphasis on quality can aid in attracting more reputable backlinks in the future.
- Recover from Google Penalties Faster — If your site has been penalized due to a poor backlink profile, using the Disavow Tool is a step toward recovery. After disavowing the harmful links, you can focus on building new quality backlinks that improve your site’s reputation and rankings.
Why We Use Google Disavow for Backlink Cleanup
Not all backlinks are good for your website. Some can actually hurt your rankings. If your site has been linked to by spammy, low-quality, or suspicious websites, it can signal to Google that your site isn’t trustworthy. That’s where the Google Disavow Tool comes in.
We use it as a safety net to tell Google, “We don’t want credit for these links.” It’s especially useful if your site has a history of questionable backlinks (sometimes from past SEO tactics or bots) or if you’re seeing ranking drops that could be tied to link quality.
For business owners, the Disavow Tool helps protect your site from penalties and ensures your SEO efforts aren’t being dragged down by bad links. It’s part of maintaining a clean, healthy backlink profile that supports long-term search visibility.
Free Backlink Tool #5: Check My Links
For those who want to clean up broken links, Check My Links is a browser extension that scans web pages for broken links. This is one of those essential link building tools that is perfect for finding opportunities to replace broken links with your own content. It’s a strategy that can quickly boost your backlink profile.

What the Check My Links Tool Can Help You Do
- Implement Broken Link Building Strategy — Check My Links is a great tool for implementing a link building strategy designed to remove and replace bad broken links for others. This involves finding broken links on websites within your niche and creating content that could replace the broken link. You can then reach out to the website owner to suggest replacing the broken link with a link to your newly created content relevant content.
- Improve Your Site’s SEO — By using the extension to find and fix broken links on your own site, you can improve user experience and site performance—factors that are important for SEO.
- Build Online Relationships — When you inform other webmasters about broken links on their sites (and perhaps offer your own content as a replacement), you’re providing value and building relationships. This can lead to more natural backlink opportunities in the future.
Why We Use Check My Links for Backlink Strategies
Check My Links is a simple yet powerful Chrome extension that quickly scans any webpage for broken links which makes it incredibly useful for uncovering backlink opportunities. We often use it during content audits or outreach research to find broken external links on relevant websites. From there, we can reach out to the site owner and suggest replacing the broken link with a high-quality resource from your site. It’s a fast, effective way to offer value and earn backlinks in return.
For business owners, it’s one of the easiest ways to turn someone else’s problem into your SEO gain.
Wrapping Up: Turn These Backlink Tools Into Tangible SEO Wins
Link building doesn’t have to be a guessing game or a time drain. The tools we’ve shared above can give you a real edge, helping you uncover high-quality opportunities, monitor your progress, and stay ahead of the competition. Whether you’re using SEMrush to analyze your backlink profile, Ahrefs to spy on competitors, or Check My Links to find quick-win opportunities, each tool brings something valuable to the table.
SEO Link Building Tools FAQ
Need Link Building Help?
If you’re serious about improving your website’s visibility and climbing the search rankings, these tools are a great place to start. But tools alone aren’t enough. It’s how you use them that makes the difference. That’s where we come in. Call us at 1-888-262-6687 or connect online in order to initiate our support and expertise.
Keiran Griffiths
Keiran Griffiths is the President & Managing Director at 1st on the List. He works exclusively out of the Abbotsford head office and has extensive experience helping small and big brands grow their business. His background is in restaurant and hospitality management as well as business development (he started his own property management company in 2014). Up for any challenge, Keiran works with clients to assess their budget and investment capabilities and come up with a marketing solution that will earn them the biggest bang for their buck.
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