Ahrefs Lite costs $129 per month, and the plan most working SEOs actually need, Standard, costs $249. That is the wall people hit before they start searching for a free alternative to Ahrefs. Two of the picks below are fully free foreSimilarwebver. Six are freemium, and the free ceilings are low: three searches a day in some cases. Every free tier cap sits in the comparison table and in the card for each tool, so you know where the wall is before you sign up. Most roundups leave that part out.
If you are auditing your whole stack rather than one tool, our full directory of ai tools and the complete alternatives library cover the same ground across other categories.
Quick Answer
The best free Ahrefs alternative depends on the job. Ahrefs Free gives you genuine Ahrefs backlink and Domain Rating data on sites you verify. Screaming Frog SEO Spider handles technical audits free up to 500 URLs per crawl. Use all three together.
We’re lucky that there’s a lot of search demand for SEO-related topics. If people weren’t searching for SEO stuff, we’d have to rely on some other channels.
Key Takeaways
- Best overall free pick
- Ahrefs Free, the renamed Ahrefs Webmaster Tools, because it is real Ahrefs data at zero cost.
- Best for backlinks
- Bing Webmaster Tools, the only free tool here that shows referring domains for sites you do not own.
- Best for audits
- Screaming Frog SEO Spider, free up to 500 URLs per crawl with no time limit.
- Best for keyword data
- The Semrush free plan, capped at 10 requests per day.
- The one hard limit shared by all free tools
- None of them gives you a large, refreshed backlink index for competitor domains. That single capability is what the $129 buys.
Why People Look for a Free Ahrefs Alternative
The trigger is the price ladder. Ahrefs added a $29 Starter plan in early 2026, which softened the entry point, but Starter is deliberately thin. Before you switch tools, check what the free ahrefs account and its free tools already cover, because you may only be missing one or two reports. The first plan with Site Audit, Rank Tracker and full Site Explorer access is Lite at $129 per month, or roughly $108 on annual billing. Standard, which unlocks Content Explorer and Batch Analysis, is $249.
Here is the part most Ahrefs alternative roundups miss. Very few people need the whole suite. A blogger needs keyword volume. A freelancer needs a Domain Rating check before buying a link. A small business owner needs a crawl that finds broken pages. Each of those is a single job, and each has a free tool that does it well. You are usually not replacing Ahrefs. You are replacing one or two reports inside it. Before switching, it’s worth understanding exactly why so many searchers look for a cheaper route, our ahrefs pros and cons breakdown lays out the real tradeoffs. Once you’ve picked a free replacement from this list, our guide on how to cancel your ahrefs subscription shows how to close the paid plan without missing a refund window. Ready to pay for more coverage? Compare se ranking vs moz, two mid-priced suites with AI tracking
The same logic applies if you are shopping for a Semrush alternative, since Semrush paid plans now start at $139.95 per month.
What Ahrefs Features Do People Actually Need?
Search demand clusters around six named features:
- DR checker
- a quick Domain Rating score for a site, usually to judge a link prospect.
- Keyword Explorer
- search volume, keyword difficulty and related terms.
- Content Gap
- keywords two or three competitors rank for and you do not.
- Batch Analysis
- metrics for a list of URLs in one run instead of one at a time.
- Link Intersect
- sites linking to several competitors but not to you.
- Traffic Checker
- an estimate of how much organic traffic a domain gets.
Keep that list in mind. Later in this article each one is mapped to a free replacement stack.
Quick Comparison Table
| Tool | Free Tier Limit | Main Strength & Best Use Case |
|---|---|---|
| Screaming Frog SEO Spider | 500 URLs per crawl. No saved crawls, JavaScript rendering, scheduling or API access. | Deep technical crawl. Best for sites under 500 pages. |
| Bing Webmaster Tools | Free, but backlink comparison is limited to two competitor domains at a time. Bing index only. | Competitor backlinks without paying. Best for link prospecting. |
| Semrush (Free Plan) | 10 requests per day. 1 project. 10 tracked keywords. No data export. | Largest keyword database here. Best for quick volume checks. |
| Similarweb (Free) | 5 results per metric. Roughly 1 to 3 months of history. No formal free plan. | Traffic and audience estimates. Best for sizing up a competitor fast. |
Compare more tools before you commit
Free tiers change fast. Our alternatives library tracks the current caps, pricing and best-use cases for every major tool category, updated as vendors change them.
4 Best Free Ahrefs Alternatives
01
Screaming Frog SEO Spider
Free technical audits
The cap first, because it decides everything: the free version crawls 500 URLs per crawl. Inside that ceiling you get a proper desktop crawler that finds broken links, redirect chains, duplicate titles, thin pages and hreflang errors. Compared to Ahrefs Site Audit, the checks are comparable in depth and the crawl runs on your own machine. Deciding between the two big crawlers? See our Sitebulb vs Screaming Frog breakdown. For dedicated site-crawling, see our list of free seo crawlers.
- Identifies 300 plus SEO issues, and exports the errors with source URLs so a developer can fix them.
- List mode lets you audit a specific set of URLs instead of a whole site.
- Not a trial. Screaming Frog SEO Spider stays free at 500 URLs indefinitely.
- 500 URLs disappears fast on any ecommerce or news site.
- Free version cannot save crawls, schedule them, render JavaScript or pull API data.
- Large crawls are limited by your own RAM. The paid licence is £199 per year, about $279.
Best for small sites and one off technical checks before a redesign or migration.
02
Bing Webmaster Tools
Competitor backlinks, free
Almost no free tool shows you links pointing at a site you do not own. Bing Webmaster Tools does. The Backlinks report has a “Backlinks to any site” view where you add up to two rival domains and compare referring domains and anchor text against your own. That is the free version of a workflow Ahrefs and Semrush charge for.
- Competitor referring domains and anchor text, side by side with yours, at no cost.
- Free Keyword Research with real Bing search volumes, no ad account required.
- Site Scan audit, URL Inspection and IndexNow submission are all included.
- Data comes from the Bing index, which is smaller than Google’s, so volumes and link counts run lower.
- You can only compare two competitor domains at a time.
- No Domain Rating equivalent, so link prospects still need a second tool to score.
Best for link prospecting and competitor research on a zero budget.
03
Semrush (Free Plan)
Best keyword database, tightest tap
Ten requests per day, one project, ten tracked keywords, and no data export. That is the entire free plan, and most people burn through it inside fifteen minutes. What you get in exchange is access to the biggest keyword database on this list. Spend the ten requests carefully and it is genuinely useful. If ten requests a day is too tight for a real project, a one-week semrush trial lifts those limits, though it needs a credit card.
- Domain Overview covers similar ground to Ahrefs Site Explorer, including top organic keywords for any domain.
- Keyword Magic Tool stands in for Ahrefs Keywords Explorer, with volume, difficulty and intent.
- Keyword Gap runs on the free plan, which is the closest free equivalent to Ahrefs Content Gap.
- The 10 per day cap makes any sustained research session impossible.
- Report rows are truncated and blurred, and nothing can be exported.
- Upgrading is expensive. Semrush paid plans start at $139.95 per month.
Best for a handful of high value keyword or competitor checks each day.
04
Similarweb (Free)
Traffic Checker stand-in
If the Ahrefs feature you miss is the Traffic Checker, this is the replacement. Type in any domain and Similarweb returns estimated monthly visits, visit duration, bounce rate, traffic sources, geography and audience interests. The free browser extension does the same while you browse.
- Traffic and audience data for domains you do not own, which very few free tools offer.
- Referral and channel breakdown is useful for market sizing, not just SEO.
- Basic lookups work without creating an account.
- These are modelled estimates, not measured visits. Treat them as directional.
- Accuracy falls sharply on small sites. Under 100,000 monthly visits, independent tests report variance of 30 to 50 percent or worse.
- Free access caps most reports at 5 results per metric with roughly 1 to 3 months of history.
Best for a fast ballpark read on a large competitor’s traffic.
Final Verdict: Which Free Ahrefs Alternative Should You Use?
- Best overall free pick
- Ahrefs Free. It is the only option that gives you actual Ahrefs metrics without a subscription.
- Best for backlink analysis
- Bing Webmaster Tools, because it is the only free tool that shows referring domains and anchor text for sites you do not own.
- Best for technical audits
- Screaming Frog SEO Spider, within its 500 URL ceiling.
- Best for keyword research
- The Semrush free plan, if you can live inside 10 requests a day. Bing Webmaster Tools Keyword Research is the unlimited fallback.
- Best for competitor research
- Similarweb for traffic shape, paired with Semrush free Domain Overview for the keywords behind it.
The realistic setup for most people costs nothing and takes an afternoon: verify your site in Ahrefs Free, Bing Webmaster Tools, install Screaming Frog, and save the Semrush free plan for the handful of competitor checks that actually matter.
Frequently Asked Questions
Search Console data is measured by Google, so it is accurate. Free backlink and traffic tools are estimates drawn from smaller indexes that refresh more slowly. They are reliable for direction and comparison. They are not reliable for valuing a domain or reporting exact traffic figures to a client.
Competitor data. Almost every free tool restricts you to sites you have verified. Bing Webmaster Tools is the main exception for backlinks, and Similarweb for traffic estimates. Deep, refreshed competitor link and keyword data across many domains is the specific capability paid tools sell.
Screaming Frog SEO Spider crawls 500 URLs free and exports the errors. Bing Webmaster Tools includes a free Site Scan. Ahrefs Free runs Site Audit on verified sites within 5,000 monthly crawl credits, and Search Console Page Indexing shows what Google refused to index.
The Semrush free plan shows Keyword Difficulty within its 10 daily requests. Ahrefs also runs a free standalone Keyword Difficulty Checker with a daily usage limit.
