Reviewed by the NexaToolkit team · Last reviewed June 2026. We’ve run both crawlers on the same large sites; this reflects that hands-on testing. NexaToolkit may earn a commission from links on this page — it never changes what we recommend.
Screaming Frog and Sitebulb are the two desktop SEO crawlers serious technical SEOs actually use — and they’re built for different people. Screaming Frog is the raw-data power tool; Sitebulb is the one that explains what it found and makes a client-ready report. Here’s which to pick, with real pricing.
Screaming Frog: raw data and unlimited crawling
Screaming Frog SEO Spider ($21.58/month equivalent, billed ~$259/year) is the industry workhorse — unlimited URLs, custom extraction, and total control over what you crawl. It renders JavaScript (Chrome) so React/Vue/Angular sites audit correctly. The trade-off: it hands you a spreadsheet of findings and expects you to know what matters.
Sitebulb: prioritized, explained audits
Sitebulb ($115 for 3 users, Professional) crawls the same technical structure but organizes results by severity and impact with plain-language explanations and visual reports — far better for handing a client or a junior team a prioritized to-do list. Also renders JavaScript.
The real difference
Choose Screaming Frog for raw analysis, custom extraction, and unlimited one-off crawls; choose Sitebulb for visual client reporting and guided prioritization. Many agencies run both: Frog to pull exactly the data they want, Sitebulb to present it.
Screaming Frog vs Sitebulb
| Screaming Frog | Sitebulb | |
|---|---|---|
| Price | ~$21.58/mo (~$259/yr) | $115 (3 users, Pro) |
| Strength | Raw data, custom extraction | Prioritized, explained reports |
| Crawl limit | Unlimited | Plan-based |
| JavaScript rendering | Yes (Chrome) | Yes (Chrome) |
| Best for | Power users, custom audits | Client reporting, teams |
A real scenario
A consultant auditing a 50,000-URL e-commerce site for a client: crawl with Screaming Frog (~$21.58/mo) to extract exactly the data — broken links, redirect chains, custom metadata — then run Sitebulb ($115) to generate the severity-ranked report the client actually reads. About $140 combined, and each does the half the other is weak at. Solo SEOs who only need data can stop at Screaming Frog.
Frequently asked questions
Screaming Frog or Sitebulb — which is better?
Neither universally. Screaming Frog for raw data, custom extraction, and unlimited crawling; Sitebulb for prioritized, explained audits and client-ready visual reports. Power users often run both.
Do both crawl JavaScript sites?
Yes — both render with Chrome, so React, Vue, and Angular sites audit accurately. That’s now table stakes for a serious crawler.
Which is cheaper?
Screaming Frog (~$259/year, about $21.58/month) is the lower entry cost; Sitebulb Professional is $115 for 3 users. For a solo SEO, Screaming Frog is the cheaper single-tool choice.
More: see our best SEO audit tools and backlink analysis tools.
