Link building software is sold as one category and is really three. Some tools find opportunities, some run the outreach, and some monitor the links you already earned. Buying the wrong group is the most common mistake here, and it is why people end up paying for a $130 suite to do a job a $40 outreach tool does better.
Below, the eleven tools worth paying for, grouped by the job they do.
How this list was put together
Every product was loaded in a browser before it went on the page. One tool that appears on most competing lists, NinjaOutreach, has been removed: its domain returns an HTTP 522 error, meaning its origin server is not responding. It is not a live product to recommend today.
Pricing is the vendor's own published entry tier. Nothing here is ranked by an affiliate relationship, and where a tool is a competitor of ours it is named in plain text rather than linked.
The three groups
| Group | The job | Tools |
|---|---|---|
| Get links | Actually produce placements | Distribb |
| Find opportunities | Research who could link to you | Semrush, Ahrefs, Majestic, Moz |
| Run outreach | Find contacts, send and track emails | Pitchbox, BuzzStream, Respona, Hunter, LinkAssistant |
| Monitor | Watch links appear and disappear | Linkody, Ahrefs, Majestic |
Most people need one from the "find opportunities" group and one from "run outreach". The suites cover the first properly and the second badly.
1. Distribb
Distribb sits first because it is the only entry here that produces links rather than helping you ask for them. Every other tool on this page is infrastructure for outreach: it finds prospects, finds their email address, and tracks whether they replied. You still have to persuade someone.
Distribb runs a backlink exchange instead. Sites in the network are matched by topic and links are placed inside real articles on each side, so the output is placements rather than a reply rate. For a small team with nobody to run outreach, that is the difference between a link building programme existing and not existing. The mechanics of that model, including how sites are matched and what a placement looks like, are set out on the Distribb backlink exchange page.
Pricing: paid subscription, no per-placement fee. Best for: businesses publishing regularly that have no outreach capacity.
Where it falls short, and it is a real limit: an exchange will not get you a link from a major publication, because those sites do not exchange links. If you need authority placements from recognised media, you need outreach or digital PR, and one of the tools below. It also is not a link index, so it does not replace Ahrefs or Majestic for competitor research.
Finding opportunities
2. Semrush
The broadest opportunity research available. Its Backlink Gap report, showing sites that link to two competitors but not to you, is the single most actionable link building report in any tool.
The Link Building Tool adds a basic outreach queue on top, which is convenient but weaker than a dedicated outreach platform.
Pricing: from around $140 a month. Where it falls short: you are buying an entire SEO suite for a link building job, and the built-in outreach is not good enough to replace Pitchbox or BuzzStream.
3. Ahrefs
The largest and freshest independent link index, which matters more than any feature. If your question is who links to my competitors, Ahrefs gives the most complete answer, and its Content Explorer is the best tool available for finding pages that already cite sources like you.
Pricing: from around $129 a month. Ahrefs Webmaster Tools is free for your own verified site. Where it falls short: credit limits on lower tiers bite quickly during research, and there is no outreach functionality at all.
4. Majestic
Link data only, and it has been doing it longer than anyone. Trust Flow and Citation Flow remain useful for judging a domain quickly, and Topical Trust Flow tells you what a site is actually about, which is exactly the relevance question that decides whether a link is worth chasing.
Pricing: from around $50 a month, the cheapest serious link index here. Where it falls short: the interface is dated and it does nothing except links, so it is a supplement rather than a main tool.
5. Moz Pro
Domain Authority originated here and remains a quick way to compare two sites. Link Explorer is competent, and Moz's Link Intersect report does the competitor gap job well.
Pricing: from around $99 a month. Where it falls short: its link index is smaller than Ahrefs' and Majestic's, and Domain Authority is a Moz metric that Google does not use, despite how often it is quoted as though it does.
Running outreach
6. Pitchbox
The most capable outreach platform in this list. Prospecting, personalised sequences, automated follow-ups, team workflows and reporting, built for agencies running hundreds of campaigns at once.
Pricing: enterprise, typically several hundred dollars a month. Where it falls short: the price and the setup. It is overkill for anyone sending fewer than a few hundred emails a month.
7. BuzzStream
The relationship-first option. It builds a CRM of the people you have contacted, remembers your history with each of them, and is far better than a spreadsheet at stopping you pitching the same person three times.
Pricing: from around $24 a month, the most accessible serious outreach tool here. Where it falls short: prospecting is weaker than Pitchbox's, and the interface shows its age.
8. Respona
The most modern of the outreach tools, combining prospect discovery, email finding and sequences in one flow, with useful automation around personalisation.
Pricing: from around $99 a month. Where it falls short: newer and less proven at very high volume than Pitchbox.
9. Hunter
Not a link building tool, but the one most link builders actually use daily. It finds and verifies email addresses for a domain, which is the step that blocks outreach more often than anything else. Campaigns can send basic sequences too.
Pricing: generous free tier, paid from around $34 a month. Where it falls short: it does one thing. You still need something to decide who to contact.
10. LinkAssistant, part of SEO PowerSuite
Desktop software rather than a subscription service, which is the whole appeal: a one-off licence instead of a monthly fee. It finds prospects, manages contacts and verifies links.
Pricing: free version available, paid licences one-off. Where it falls short: desktop software means it runs on your machine, so nothing happens when it is closed and team collaboration is awkward.
Monitoring
11. Linkody
Watches your backlink profile and tells you when a link disappears, which happens far more than most people realise. Cheap, focused, and it emails you rather than requiring you to remember to check.
Pricing: from around $15 a month. Where it falls short: monitoring only, with a smaller index than the majors, so use it alongside rather than instead of one.
Comparison
| Tool | Group | Entry price | Best for |
|---|---|---|---|
| Distribb | Get links | Subscription | No outreach capacity |
| Semrush | Find opportunities | ~$140/mo | Competitor gap analysis |
| Ahrefs | Find opportunities | ~$129/mo | The best link index |
| Majestic | Find opportunities | ~$50/mo | Cheap, focused link data |
| Moz Pro | Find opportunities | ~$99/mo | Gentle learning curve |
| Pitchbox | Outreach | Enterprise | Agencies at volume |
| BuzzStream | Outreach | ~$24/mo | Relationship tracking |
| Respona | Outreach | ~$99/mo | Modern all-in-one outreach |
| Hunter | Outreach | Free tier | Finding email addresses |
| LinkAssistant | Outreach | One-off licence | Avoiding subscriptions |
| Linkody | Monitoring | ~$15/mo | Knowing when links vanish |
What to buy, by situation
- Solo, small budget, no time for outreach: an exchange plus Linkody to watch what you have. Outreach tools are pointless if nobody is going to send the emails.
- Solo, willing to do outreach: Ahrefs Webmaster Tools free, Hunter's free tier, and BuzzStream at $24. Under $60 a month total and genuinely sufficient.
- In-house marketer at a growing company: Semrush for the gap reports plus BuzzStream or Respona for the sending.
- Agency running client campaigns: Ahrefs plus Pitchbox. The cost is justified by volume and by the reporting clients expect.
Note what is not on that list: nobody needs three suites. Semrush, Ahrefs and Moz overlap almost entirely, and paying for two of them is the most common wasted line item in SEO budgets.
A note on automation
Several of the queries that bring people to this page are about automated or automatic link building specifically, which is a related but distinct question. Tools that automate outreach sequences are legitimate and covered above. Tools that promise thousands of automatically generated backlinks are a different thing and mostly produce links that get ignored. A neighbouring question, whether it is ever worth building links to your links, is covered in our guide to tiered link building.
We cover that side properly in top AI tools to automate backlink building, which is the more relevant page if automation is what you came for. For the exchange model specifically, see best backlink exchange platforms, and for the software category adjacent to this one, backlink builder software. If you are starting from nothing, link building for startups covers the first ten links, which are always the hardest.
Frequently asked questions
What is the best link building software?
It depends which of the three jobs you need done. Ahrefs is the best for finding opportunities, Pitchbox for running outreach at volume, BuzzStream for outreach on a budget, and an exchange if you want placements without doing outreach at all. Whichever you buy, the reply rate depends on having something worth linking to in the first place, which our roundup of link bait examples shows in practice.
Can link building be fully automated?
The outreach mechanics can be: finding prospects, finding addresses, sending sequences and following up. The persuasion cannot, and tools promising fully automatic backlinks in bulk are generally producing links search engines ignore.
Do I need both Ahrefs and Semrush?
Almost never. They overlap heavily. Pick Ahrefs if link data is your priority and Semrush if you want the broader SEO suite, and spend the saved money on an outreach tool instead.
How much should link building software cost?
A workable solo setup runs $40 to $60 a month. An in-house marketer typically lands around $200. Agencies run considerably more, justified by client volume rather than by better results per link. Agency pricing for SaaS works on a different basis again, and we break that down in how a SaaS link building agency prices the work.
Is NinjaOutreach still available?
Its domain returns an HTTP 522 error, meaning the origin server is not responding, so it is not something to buy today. It still appears on many competing lists, which is a good indication those lists were not checked before publishing.
What is the difference between link building software and a link marketplace?
Software helps you find and contact people who might link to you. A marketplace sells you the placement directly. Marketplaces are faster and cost per link, and paid placements sit against Google's guidelines in a way that earned outreach does not. The whole distinction rests on what an editorial link is, which is worth being precise about before you pay for either.
How long does outreach take to produce links?
Typically four to eight weeks from first email to published link, at a success rate of roughly 1 to 5 percent of emails sent. Anyone quoting materially better than that is either working a warm list or counting differently. Reply rates vary sharply by tactic, and resource link building, where you pitch a page to an existing list of references, sits at the higher end of that range.
The short version
Work out whether your bottleneck is finding opportunities, sending the emails, or having nobody to send them. Buy one tool for that bottleneck and nothing else until it is solved, because a second suite has never once fixed a link building programme that nobody had time to run. If the bottleneck is that you have nothing worth pitching, our podcast link building playbook covers earning links by appearing as a guest instead of by sending email.