12 Screaming Frog Alternatives, Compared

Screaming Frog's SEO Spider is the default answer to "what crawler should I use", and for a lot of jobs it's still the right one. Its paid licence is £199 per licence per year (£169 each at 20 or more, checked against screamingfrog.co.uk on 20 September 2026), and its free version stops at 500 URLs with 24 of its 31 features switched off, including saving a crawl, scheduling and JavaScript rendering.

The short answer, before the detail: if you want the closest like-for-like desktop swap, look at Sitebulb, Netpeak Spider or WebSite Auditor. If you already pay for Semrush, Ahrefs or SE Ranking, try the site audit already inside your subscription before buying anything. If you're running an enterprise crawling programme, the shortlist is Lumar or OnCrawl. If you want to pay nothing at all, LibreCrawl and Crab are free with no URL cap. And Crawl Cove, our own tool, sits in the desktop group with ranking data built in; we'll make that case at the end, plainly marked as ours.

Here are all twelve at a glance. Prices and limits were read from each vendor's own site; the date beside each figure in the write-ups below is when.

If you already pay for a cloud SEO suite

These three ship a site audit as one module inside a much bigger subscription. If you're already a customer, the crawler is effectively free to try; if you're not, buying the suite just for the audit is an expensive way to get one feature.

Semrush Site Audit crawls in the cloud against your plan's page-crawl allowance, inside the wider Semrush platform: rank tracking, keyword research, backlink analysis and more. The audit itself is capable, with JavaScript rendering, scheduled recrawls and thematic reports, and it lives in the same interface as your keyword and position data, which is the real draw if your team already works there. What you give up is everything a local crawl can do: it can't reach a staging site behind a VPN, and the crawl allowance is shared across the plan rather than unlimited. Semrush prices its plans by country, so check semrush.com for your own figure rather than trusting any number a roundup quotes. See the full Crawl Cove vs Semrush comparison, or why teams move from Semrush's audit specifically.

Ahrefs Site Audit is the same shape: a genuinely good cloud crawler, bundled into the Ahrefs suite and metered by plan tier. The published allowances (read from ahrefs.com's own plan comparison table, September 2026) are 100,000 crawl credits a month on Lite, 500,000 on Standard and 1.5 million on Advanced, with a per-project page cap of 25,000, 50,000 and 250,000 respectively. That per-project cap is the figure to check first: a 60,000-page site won't fit in one Lite or Standard project no matter how many monthly credits remain. Prices are geolocated, so again, read their page for your own currency. See Crawl Cove vs Ahrefs, or the case for a dedicated auditor instead.

SE Ranking bundles a site audit alongside rank tracking, reporting and (as a separate paid add-on) white-label reports. Its audit allowance is 250,000 pages a month on the Core plan and 2 million on Growth, read from seranking.com and checked September 2026. Of the three suites it's the one most often bought by smaller agencies for the rank tracker, with the audit as a useful extra rather than the reason to subscribe. Screaming Frog vs SE Ranking has the full breakdown, or see the alternative case on its own page.

If you're crawling at enterprise scale

Both of these are built for large, ongoing crawling programmes, typically with an in-house SEO or dev team managing the rollout. Neither publishes a price anywhere on its site (both re-checked September 2026): Lumar's pricing page is a contact form, and OnCrawl's only path is "Book a demo". Expect a sales conversation, not a checkout button.

Lumar (formerly DeepCrawl) is an enterprise cloud crawler built for scheduled, unattended crawls of very large sites, with accessibility (WCAG) and site-speed monitoring as named modules alongside the technical SEO crawl. That module list is the honest signal of who it's for: organisations that want crawling as a continuous, monitored programme with dashboards and alerting, not a tool someone opens on a Tuesday to audit one site. See Crawl Cove vs Lumar, or the alternative page.

OnCrawl is aimed squarely at technical SEO and log file analysis at scale. Its differentiator is real: it cross-references crawl data with your server's log files, so you can see what Google actually fetched versus what your site structure suggests it should, and by its own homepage it processes over 500 million log lines daily. If log data at volume is genuinely what you need, none of the desktop tools on this page do that job at all. If it isn't, you'd be buying a data platform to answer questions a desktop crawler answers in an afternoon. Read the alternative case.

The closest like-for-like desktop swaps

If what you actually want is "Screaming Frog, but different", these three are the nearest thing: standalone crawlers you install and run yourself, not suite add-ons.

Sitebulb is the strongest direct rival. Its built-in hint library explains every issue in plain English with a priority score, which is the single thing Screaming Frog users miss most when they try it. Its UK desktop pricing (read from sitebulb.com in August 2026; they price in local currency) starts at £12.50 a month for Lite, which caps audits at 10,000 URLs and leaves out the structured data, hreflang, accessibility, performance and scheduling reports; Pro at £30 a month per user adds all of those. A separate cloud product for teams starts at £95 a month (verified September 2026). The trade-off against Screaming Frog's flat £199 a year: Sitebulb Pro costs more over a year and charges per user, but you get explanations and prioritisation rather than raw data to interpret yourself. Crawl Cove vs Sitebulb, or the full alternative page.

Netpeak Spider is the budget pick of the three: a capable, fast, Windows-first desktop crawler at $20 a month, $193 a year, or a one-off $496 lifetime licence, with a permanent free edition capped at 500 URLs and 5 threads (all checked against netpeaksoftware.com, 14 September 2026; they price in USD). It's closer to Screaming Frog in spirit than Sitebulb is: dense tables of raw findings, heavy configurability, reports left for you to interpret. If you're comfortable in Screaming Frog and just want a cheaper or second licence, this is the like-for-like. See the alternative case.

WebSite Auditor is the crawler inside SEO PowerSuite's four-tool bundle, alongside a rank tracker, a backlink tool and an outreach tool. Its "Free Forever" tier has no time limit but caps crawls at 500 URLs; removing the cap means buying the whole bundle, from £299 a year (checked against link-assistant.com, 14 September 2026). The audit itself is solid, with good on-page analysis and visualised site structure, but you're buying four tools to get one, which is the same suite economics as Semrush and Ahrefs at a smaller scale. If the site audit is the only part you'd use, the standalone case is worth reading.

The one Mac-only option

Lil Robots' SEO Crawler is a macOS app (a Windows version has been on a release waiting list), aimed at short, client-ready fix lists rather than deep configurability: it crawls, ranks what matters, and hands you a prioritised to-do list rather than a spreadsheet. It has a free mode capped at 100 URLs, then paid plans from $19 a month or $179 a year, its own figures from lilrobots.com, checked September 2026. If you're on a Mac and want something deliberately lighter than Screaming Frog, the full head-to-head is here; if you need Windows, it isn't an option today.

Free, with no URL cap

Two worth naming here, both checked against their own sites in September 2026:

LibreCrawl is MIT-licensed and open source, and not a native installer: it runs as a local Python Flask web app you open in a browser tab, which is a real setup step compared with everything else on this page. In exchange it offers full Playwright rendering for JavaScript-heavy React, Vue and Next.js sites, a real-time memory dashboard, and by its own account handles crawls well past a million URLs. That JavaScript rendering is the standout: Screaming Frog puts rendering behind its paid licence, and LibreCrawl does it for nothing.

Crab is open source too, with native builds for macOS (Apple Silicon and Intel), Windows and Linux, so there's no Python setup, just an installer. No URL cap is stated anywhere on its site, and its own pitch is blunt about the comparison it's making: no trials, no premium tiers, free forever. Of the two, Crab is the one to hand to someone who just wants an app; LibreCrawl is the one for big or JavaScript-heavy crawls.

Five more free tools, including one built by a UK agency and one still shipped by its original author from 2010, are in the full free-alternatives roundup.

Where Crawl Cove fits

To be direct about it, since this is a roundup and not a pitch: Crawl Cove is a desktop crawler for Windows and macOS, in the same category as Sitebulb, Netpeak Spider and WebSite Auditor, not a suite add-on and not an enterprise platform. The difference from Screaming Frog itself is what's built in on every plan with no separate purchase: Google Search Console in one click, Bing and CrUX with a free key each, and Lighthouse on demand, sitting next to the crawl findings rather than in a different tab. Every issue comes with a plain-English fix, audits are versioned so you can diff two crawls and show a client what changed, and crawls run locally with no URL cap and nothing uploaded to us. Plans are monthly, every feature on every plan; the pricing page has the figures, the full Crawl Cove vs Screaming Frog comparison has the head-to-head, and the 14-day trial is every feature unlocked, no card required.

For a side-by-side of five of the tools above in one table, the full comparison matrix covers Crawl Cove, Screaming Frog, Sitebulb, Semrush and Ahrefs together. And if what actually drew you to this page is wanting a proper crawler for the first time, not swapping one out, our SEO crawler feature page is the plainer starting point.

Every tool on this page can change its pricing, plans or platform support at any point after the dates given above. Check the vendor's own site before you commit to one.